A soft rubber tread molded over hard rubber core. The soft rubber provides a shock-absorbing cushioned ride. Offers floor protection and a quiet rolling operation. The nylon bearing sleeve molded in to the wheel core offers improved rollability.
As part of the 21 Series, this caster features a 1.25 Inch wide wheel in a dual ball bearing raceway. The 21 Series comes standard in Bright Zinc Plating with a dust cover.