Shepherd grip ring stem soft tread caster – 60mm diameter 7/16 x 7/8 stem black this soft tread casters has a twin wheel design for easy mobility. Ideal for use with electronic equipment, medical equipment, audio/visual equipment and furniture. Soft 70-75/a durometer tread is made of high-tech thermoplastic elastomer. Offers high load ratings with quiet mobility. Rivet axle provides positive wheel retention. Features 100 lb. Capacity. Wheel diameter measures 60 millimeters. Height of caster is 2-5/8 inches. Black finish.