4 Inch Hard Rubber Wheel Swivel 1-1/2 Inch Expanding Stem Caster Set SCC/SCC-EX20S414-HRS-MTG46-4 (Set of 4)

Features

• All casters feature an expanding stem that is 2-11/16” in length. Recommends measuring the inside diameter of your tubing, this measurement will determine the corresponding expanding stem diameter needed.
• Brake options include a top lock brake (TLB) or a total lock brake (TTL). The top lock brake places a positive locking force against the wheel tread locking the wheel only. The total lock brake, which is featured on all wheel sizes, also places a positive locking force against the wheel tread, but the total lock brake simultaneously locks the wheel and the swivel for a complete stationary position.
• Wheel hardness: 70-80 Shore d durometer