chairpartsonline 2" Antique Brass Ball Caster Wheel for Office, Executive, Gaming Chairs & Furniture w/ 5/16" x 1 1/2" (8 x 38mm) Socket Type Mounting Stem - Set of 5 - S5357 2" (50mm) round PVC ball wheel design - Hard PVC wheel is ideal for use on carpet and plastic chair mats Antique brushed brass metal hood for a more refined look Grip neck mounting socket stem for metal or plastic insert measures 5/16" x 1 1/2" (8 x 38mm) - Mounting insert sockets not included Heavy duty 90 lb. weight capacity per caster Set of 5 casters