3" Gemini casters with a J-plate feature a decorative, two-toned body to provide a modern look for a variety of your equipment. Toggle brakes quickly lock and release to prevent rolling on smooth surfaces. 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.