EASY ROLLING:Precision ball-bearing 4" solid polyurethane non-marking caster wheel for easiest rolling of very heavy loads on hard surfaces and most flooring. Available in rigid, 360° swivel, or swivel with foot brake.
HEAVY DUTY BUILT TO LAST:Industrial-rated thick steel zinc-plated construction resists contaminants and weather, with a tough, smooth wheel designed for super-duty maximum capacity.
VERSATILE SOLUTIONS:Slotted top plate fits industry-standard 2-3/8" x 3-5/8" with bolt hole slots 1-3/4" x 2-7/8" on center, ideal replacement for 4-wheel dolly carts, platform trucks, and panel carts.