HEAVY DUTY CASTER WHEELS:Double ball bearing for each wheel, moving smooth, the load capacity for each casters is more than 250lbs. Plate Size: 2.6" (66mm) x 3.2" (82mm). Hole center to hole center: 1.6" (42mm) x 2.2"( 56mm). Mounting hole dimensions: 0.33" (8.4mm) x 0.46" (11.7mm)). Overall Height: 3.9" (100mm). Caster Wheel Diameter: 3" (76mm). Caster Wheel Width: 0.9" (23mm). Caster Wheel Material: Rubber. Caster Wheel Color: Black. SMALL and STRONG, SUPER LOAD-BEARING: This heavy duty caster wheels swivel made of the popular Non-Marking rubber type, very quiet running, absorbs shock and vibrations. Saving of time and labour. These powerful caster wheels can be used for a multitude of small projects. SWIVEL CASTERS ROTATE 360 DEGREE: Transform the mating equipment to any directions in the most efficient and labor-saving way, our caster wheels are the best accessories for the heavy furniture, desktop, table, cabinet or trolley. QUIET RUBBER BASE WHEELS: Silent and no noise rolling, so don’t worry to disturb others when moving your devices. WIDELY USED: Heavy duty caster can be used in both industrial and residential applications, for coffee table, plant stands, bookshelves, shoe bins, toy bins, shopping carts, workbench, warehouse or supermarket shelves.