Ray-Ban Round Metal RB 3447N Sunglasses

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 colour or combination of colours that a product’s outer frame is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the frame for consumers.

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

The classification of a lens based on its intended use or design type, such as prime, zoom, wide‑angle, telephoto, macro, or specialty lenses. It helps buyers quickly identify the general purpose and optical characteristics of the lens.

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.

The visual hue or tint of a lens surface, such as solid, gradient, mirrored, or polarized. It helps users identify the appearance and style of eyewear lenses.

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.

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.

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.