8" x 2" Polyurethane Wheel Swivel Caster with 3/4" Threaded Stem - 1,200 Lbs Capacity8" x 2" POLYURETHANE WHEEL SWIVEL CASTER WITH 3 4" THREADED STEM Part #: 7RTP0820PRX Specifications: Polyurethane on polyolefin wheels offer more floor protection, non marking treads, quieter rolling, & smoother rides compared to steel or phenolic wheels while still providing comparable load capacities. These polyurethane on polyolefin wheels are going to be the most economically priced of the polyurethane wheels and great for general industrial