Light Medium Casters is heat-treated and embossed for durability. It features two separate ball bearing swivel raceways. It has mold on rubber, cast iron center. It is zinc plated. It is perfect where smooth, quiet and mobile operation is essential. It moves easily over sills, ramps, and other floor obstructions. It is used in food service, institutional, medial, laboratory, retail, residential, industrial and manufacturing Industries. Cold-formed is for extra strength and rigidity. Zinc electro-galvanized finish for bright appearance and rust prevention.

A light meter is an instrument mainly used to measure the amount of light. In photography, a light meter is often used to determine the proper exposure for a photograph. Typically a light meter will include a computer, either digital or analogue, which allows the photographer to determine which shutter speed and f-number should be selected for an optimum exposure, given a certain lighting situation and film speed. Light meters are also used in the fields of cinematography and scenic design, in order to determine the optimum light level for a scene. They are used in the general field of lighting, where they can help to reduce the amount of waste light used in the home, light pollution outdoors, and plant growing to ensure proper light levels.