' Stem Caster, Caster Load Rating Range Light-Medium Duty , Caster Stem Type Friction Ring, Wheel Dia. 2-1/2 In., Wheel Width 5/8 In., Load Rating 75 lb., Stem Dia. 3/8 In., Wheel Color Black, Overall Height 3-1/32 In., Caster Wheel/Tread Material Rubber, Caster Core Material Rubber, Core Color Black, Ball Caster Wheel Bearings, Stem Length 1 In., Caster Raceway Single Ball, High Nickel Frame Finish, Features Soft Tread for Hard Surfaces, Application Office Chairs and Furniture '