3 in. 120 lbs. Capacity Rubber Roller-Bearing Swivel Plate Caster (4-Pack)Remember when you had the perfect wheels. Add some mobility into your DIY project with some WEN Swivel Casters. Made from durable non marring black rubber with steel dust caps, these reliable wheels measure in at 3 in. Dia with a 0. 9 in. tread width (85 mm x 22 mm). Roller bearings reduce friction and evenly distribute support loads. Plate measures in at 4 in. x 3. 3 in. (102 mm x 84 mm) with four 9 mm x 14 mm mounting holes. Mounting hardware not