8" x 2" Polyurethane Swivel Caster Wheels. 360° Rotation & Effective Brake & Wear Resistance. The highest quality industrial grade caster wheels made of non-marking polyurethane rubber type can roll smoothly and silently. Steel structure body is extremely hard wearing and to dirt. It can provide instant mobility for stationary objects in your workshop, garage, warehouse, kitchen, offices, and much more.