8" x 2" Poly-Pro Medium/Heavy Duty Rigid Caster with Polyurethane Wheel8" x 2" Poly Pro Medium Heavy Duty Rigid Caster with Polyurethane Wheel Enhance your equipment's mobility with our Poly Pro Medium Heavy Duty Rigid Casters. Designed for durability and performance, these casters feature an 8" polyurethane polyolefin wheel that ensures smooth operation without marking floors. The robust red black wheel combination not only looks great but is also built to handle heavier loads with ease. The solid construction and