Roughneck Poly Mover's Dolly - 1,200-Lb. Capacity Great for moving bulky items weighing up to 1,200 lbs. Steel reinforced lightweight high-impact polypropylene frame Nonporous surface will not splinter, rust, rot or mildew Diamond tread rubber pads prevent cargo skidding Rolls on four 4in. rubber swivel casters (2 with brake)