Richelieu F30764 Rubber Wheel Furniture Caster with Threaded Stem, 132 Lb, 4"Rubber Wheel Caster gives mobility to heavy loads on smooth, hard surfaces and finished concrete floors where quiet movement and floor protection are major considerations. Double ball bearing for easy swiveling. Multipurpose designed for functional and decorative applications. Size: 4" Rubber wheel caster With 1 2" 13 x 1 1 2" threaded stem Load capacity: 132 lbs General duty Double ball bearing for easy swiveling Soft tread and hard core makes for a