Master Caster Gemini Series Heavy-Duty Twin Wheel Hard Floor Casters, R Stem, Gray, 5/Set (MAS70415) Set of 53" Gemini casters feature noiseless stems that eliminate excessive noise to move quietly on all floor surfaces. Decorative, two toned body adds a modern look to a variety of your equipment. High weight rating safely supports up to 220 lb. per wheel. Soft, twin wheel casters are safe for use on hard floors and chairmats. Gemini casters are perfect for adding mobility to cabinets, files, tables, chairs and more. General Information Manufacturer: Master