A property-value pair representing an additional characteristic of the entity, e.g. a product feature or another characteristic for which there is no matching property in schema.org.<br/><br/> Note: Publishers should be aware that applications designed to use specific schema.org properties (e.g. https://schema.org/width, https://schema.org/color, https://schema.org/gtin13, ...) will typically expect such data to be provided using those properties, rather than using the generic property/value mechanism.

An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. Typically the value is a URI-identified RDF class, and in this case corresponds to the use of rdf:type in RDF. Text values can be used sparingly, for cases where useful information can be added without their being an appropriate schema to reference. In the case of text values, the class label should follow the schema.org [style guide](https://schema.org/docs/styleguide.html).

The overall rating, based on a collection of reviews or ratings, of the item.

An alias for the item.

An intended audience, i.e. a group for whom something was created.

An award won by or for this item.

Awards won by or for this item.

The brand(s) associated with a product or service, or the brand(s) maintained by an organization or business person.

A category for the item. Greater signs or slashes can be used to informally indicate a category hierarchy.

The color of the product.

The depth of the item.

A description of the item.

A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.

The GTIN-12 code of the product, or the product to which the offer refers. The GTIN-12 is the 12-digit GS1 Identification Key composed of a U.P.C. Company Prefix, Item Reference, and Check Digit used to identify trade items. See [GS1 GTIN Summary](http://www.gs1.org/barcodes/technical/idkeys/gtin) for more details.

The GTIN-13 code of the product, or the product to which the offer refers. This is equivalent to 13-digit ISBN codes and EAN UCC-13. Former 12-digit UPC codes can be converted into a GTIN-13 code by simply adding a preceding zero. See [GS1 GTIN Summary](http://www.gs1.org/barcodes/technical/idkeys/gtin) for more details.

The GTIN-14 code of the product, or the product to which the offer refers. See [GS1 GTIN Summary](http://www.gs1.org/barcodes/technical/idkeys/gtin) for more details.

The GTIN-8 code of the product, or the product to which the offer refers. This code is also known as EAN/UCC-8 or 8-digit EAN. See [GS1 GTIN Summary](http://www.gs1.org/barcodes/technical/idkeys/gtin) for more details.

The height of the item.

The identifier property represents any kind of identifier for any kind of [Thing](https://schema.org/Thing), such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See [background notes](https://schema.org/docs/datamodel.html#identifierBg) for more details.

An image of the item. This can be a [URL](https://schema.org/URL) or a fully described [ImageObject](https://schema.org/ImageObject).

A pointer to another product (or multiple products) for which this product is an accessory or spare part.

A pointer to another product (or multiple products) for which this product is a consumable.

A pointer to another, somehow related product (or multiple products).

A pointer to another, functionally similar product (or multiple products).

A predefined value from OfferItemCondition specifying the condition of the product or service, or the products or services included in the offer. Also used for product return policies to specify the condition of products accepted for returns.

An associated logo.

Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](https://schema.org/docs/datamodel.html#mainEntityBackground) for details.

The manufacturer of the product.

A material that something is made from, e.g. leather, wool, cotton, paper.

The model of the product. Use with the URL of a ProductModel or a textual representation of the model identifier. The URL of the ProductModel can be from an external source. It is recommended to additionally provide strong product identifiers via the gtin8/gtin13/gtin14 and mpn properties.

The Manufacturer Part Number (MPN) of the product, or the product to which the offer refers.

The name of the item.

An offer to provide this item—for example, an offer to sell a product, rent the DVD of a movie, perform a service, or give away tickets to an event. Use [businessFunction](https://schema.org/businessFunction) to indicate the kind of transaction offered, i.e. sell, lease, etc. This property can also be used to describe a [Demand](https://schema.org/Demand). While this property is listed as expected on a number of common types, it can be used in others. In that case, using a second type, such as Product or a subtype of Product, can clarify the nature of the offer.

Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.

The product identifier, such as ISBN. For example: `meta itemprop="productID" content="isbn:123-456-789"`.

The date of production of the item, e.g. vehicle.

The date the item, e.g. vehicle, was purchased by the current owner.

The release date of a product or product model. This can be used to distinguish the exact variant of a product.

A review of the item.

Review of the item.

URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.

The Stock Keeping Unit (SKU), i.e. a merchant-specific identifier for a product or service, or the product to which the offer refers.

URL of the item.

The weight of the product or person.

The width of the item.

The time needed to accelerate the vehicle from a given start velocity to a given target velocity. Typical unit code(s): SEC for seconds - Note: There are unfortunately no standard unit codes for seconds/0..100 km/h or seconds/0..60 mph. Simply use "SEC" for seconds and indicate the velocities in the [name](https://schema.org/name) of the [QuantitativeValue](https://schema.org/QuantitativeValue), or use [valueReference](https://schema.org/valueReference) with a [QuantitativeValue](https://schema.org/QuantitativeValue) of 0..60 mph or 0..100 km/h to specify the reference speeds.

Indicates the design and body style of the vehicle (e.g. station wagon, hatchback, etc.).

The available volume for cargo or luggage. For automobiles, this is usually the trunk volume. Typical unit code(s): LTR for liters, FTQ for cubic foot/feet Note: You can use [minValue](https://schema.org/minValue) and [maxValue](https://schema.org/maxValue) to indicate ranges.

The date of the first registration of the vehicle with the respective public authorities.

The drive wheel configuration, i.e. which roadwheels will receive torque from the vehicle's engine via the drivetrain.

The CO2 emissions in g/km. When used in combination with a QuantitativeValue, put "g/km" into the unitText property of that value, since there is no UN/CEFACT Common Code for "g/km".

The capacity of the fuel tank or in the case of electric cars, the battery. If there are multiple components for storage, this should indicate the total of all storage of the same type.<br/><br/> Typical unit code(s): LTR for liters, GLL of US gallons, GLI for UK / imperial gallons, AMH for ampere-hours (for electrical vehicles).

The amount of fuel consumed for traveling a particular distance or temporal duration with the given vehicle (e.g. liters per 100 km). - Note 1: There are unfortunately no standard unit codes for liters per 100 km. Use [unitText](https://schema.org/unitText) to indicate the unit of measurement, e.g. L/100 km. - Note 2: There are two ways of indicating the fuel consumption, [fuelConsumption](https://schema.org/fuelConsumption) (e.g. 8 liters per 100 km) and [fuelEfficiency](https://schema.org/fuelEfficiency) (e.g. 30 miles per gallon). They are reciprocal. - Note 3: Often, the absolute value is useful only when related to driving speed ("at 80 km/h") or usage pattern ("city traffic"). You can use [valueReference](https://schema.org/valueReference) to link the value for the fuel consumption to another value.

The distance traveled per unit of fuel used; most commonly miles per gallon (mpg) or kilometers per liter (km/L). - Note 1: There are unfortunately no standard unit codes for miles per gallon or kilometers per liter. Use [unitText](https://schema.org/unitText) to indicate the unit of measurement, e.g. mpg or km/L. - Note 2: There are two ways of indicating the fuel consumption, [fuelConsumption](https://schema.org/fuelConsumption) (e.g. 8 liters per 100 km) and [fuelEfficiency](https://schema.org/fuelEfficiency) (e.g. 30 miles per gallon). They are reciprocal. - Note 3: Often, the absolute value is useful only when related to driving speed ("at 80 km/h") or usage pattern ("city traffic"). You can use [valueReference](https://schema.org/valueReference) to link the value for the fuel economy to another value.

The type of fuel suitable for the engine or engines of the vehicle. If the vehicle has only one engine, this property can be attached directly to the vehicle.

A textual description of known damages, both repaired and unrepaired.

The total distance travelled by the particular vehicle since its initial production, as read from its odometer.<br/><br/> Typical unit code(s): KMT for kilometers, SMI for statute miles.

The number or type of airbags in the vehicle.

The number of axles.<br/><br/> Typical unit code(s): C62.

The number of doors.<br/><br/> Typical unit code(s): C62.

The total number of forward gears available for the transmission system of the vehicle.<br/><br/> Typical unit code(s): C62.

The number of owners of the vehicle, including the current one.<br/><br/> Typical unit code(s): C62.

The position of the steering wheel or similar device (mostly for cars).

A short text indicating the configuration of the vehicle, e.g. '5dr hatchback ST 2.5 MT 225 hp' or 'limited edition'.

Information about the engine or engines of the vehicle.

The Vehicle Identification Number (VIN) is a unique serial number used by the automotive industry to identify individual motor vehicles.

The color or color combination of the interior of the vehicle.

The type or material of the interior of the vehicle (e.g. synthetic fabric, leather, wood, etc.). While most interior types are characterized by the material used, an interior type can also be based on vehicle usage or target audience.

The release date of a vehicle model (often used to differentiate versions of the same make and model).

The number of passengers that can be seated in the vehicle, both in terms of the physical space available, and in terms of limitations set by law.<br/><br/> Typical unit code(s): C62 for persons.

Indicates whether the vehicle has been used for special purposes, like commercial rental, driving school, or as a taxi. The legislation in many countries requires this information to be revealed when offering a car for sale.

The type of component used for transmitting the power from a rotating power source to the wheels or other relevant component(s) ("gearbox" for cars).