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The width of the bridge section of a product, typically expressed in millimeters or inches. It indicates how wide the central part that connects two halves (e.g., lenses, panels, or components) is, which can affect fit, stability, and compatibility with other parts.

The combined measurement of a glasses lens diameter (in millimeters) and the nose bridge width (also in millimeters). It is expressed as two numbers separated by a hyphen, e.g., "55-18". The first number indicates the lens diameter, while the second indicates the width of the bridge that rests on the nose.

The shape or silhouette of the eyewear frame, such as Rectangle, Cat‑Eye, Round, etc. It describes the overall geometry that determines how the lenses are mounted and how the glasses fit the wearer.

The material used to construct the outer frame of a product, such as metal, plastic, wood, or composite blends. This attribute helps users understand durability, weight, appearance, and suitability for specific applications.

The overall geometric outline of an eyewear frame, such as full‑rim, rimless, half‑rim, or frameless. This attribute helps users quickly identify and compare the visual silhouette of glasses.

The structural design of a product’s outer shell or enclosure, such as the shape and coverage of eyewear frames, camera housings, or protective casings. It indicates whether the frame is full‑rim, half‑rim, rimless, frameless, or has a specific mounting style. This attribute helps users understand how the product is supported and protected.

Indicates the gender or sex classification associated with a product, such as male, female, unisex, or children’s categories. This attribute helps consumers identify items tailored for specific genders or suitable for all.

Indicates whether the product features lenses that change color or opacity when exposed to light, such as photochromic or transition lenses.

The colour or combination of colours that the lenses of a product are available in, expressed as common names such as "Black", "Silver" or descriptive terms like "Grey Gradient". It indicates the visual appearance of the lens surface for consumers.

The diameter of a camera lens measured in millimetres (mm). It indicates the physical size of the optical element and helps determine compatibility with lenses, mounts, and accessories such as filters or hoods.

The optical material or treatment applied to the lenses, such as "Polarised", "With mirror coating" or a specific colour/gradient designation. It indicates the visual effect and protective properties of the lens surface.

Indicates whether a device supports port‑mirroring, allowing traffic on one network port to be duplicated and sent to another for monitoring or diagnostic purposes.

Indicates whether the product’s lenses are polarized, reducing glare and improving visual clarity in bright conditions.

Represents the numerical value indicating how many times a product can amplify or multiply a base measurement, such as optical zoom or other magnification effects. The value is expressed without units and can be any positive number, including decimals.

A unique identifier that distinguishes a product variant from its base model or other variants within the same product line. It is used to track different configurations, colors, sizes, special editions, or regional versions of a product.

The overall dimension or measurement that identifies the size of a product, such as a frame, garment, electronic component, or container. It can be expressed as a single numeric value (e.g., 47 mm), a range (e.g., 50–60 cm), a volume (e.g., 700 ml), or a descriptive label like "One Size". The attribute helps customers compare and select items that fit their needs.

A size designation that identifies the physical dimensions or fit of a product, such as clothing sizes (S, M, L), shoe sizes, or other standardized measurements used to describe how a product fits or is intended for use. The value may be a single size code or a combination of codes separated by slashes.

The linear measurement of the temple arm of an eyewear frame, expressed in a standard unit such as millimetres or inches. It indicates how far the arm extends from the hinge to the outer edge and helps users assess fit and compatibility with different eye shapes.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.