1 1/2 in Expanding Stem Swivel Caster w/ 3 in Wheel and Brake

1 1/2 in Expanding Stem Swivel Caster w/ 3 in Wheel and Brake. Expansion Stem Swivel Caster W/Brake For 1 1/2″ OD Tubing Exact Stem Size = 1.461″ OD Wheel Size 3″ Tread Width 1 1/4″ Bore 1/2″ ID Delrin Bearing 3/8″ ID Beige Hub, Grey Rubber L This is an aftermarket replacement part, engineered to meet the original specification. Backed by Howdy Brewer with fast shipping and 30-day returns. Is this a genuine OEM part? No this is an aftermarket replacement part engineered to meet the original specifications.