Firex KF20 Interconnectable Optical Smoke Alarm

A colour is a visual attribute that describes the hue or shade of an object or surface. It can be a single dominant colour, a combination of colours, or a range such as "Black, White". The value may be expressed in common names (e.g., Black, Silver) or descriptive terms (e.g., One Colour, Assorted).

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.