5/8" ID Square Nylon Socket

Dual Wheel Swivel Caster Bright Zinc Finish #20(2-1/2x3-5/8)Top Plate Dual 2x7/8 Advanced Elastomer Wheels Ball Bearings 400 lb Load Capacity 3-1/4" Overall Height

12"STRIP CORNER BUMPER W/METAL INSERT. APPLY TO ANY RIGHT ANGLE SHAPE

ROUND DOUGHNUT BUMPER 3-1/4 O.D.; 15/16 Wide; 5/16 Bolt Hole. Gray Thermoplastic rubber with metal insert.

CORNER BUMPER W/INSERT 3"x3" legs x 1-1/16" wide. PAIRS W/ A-567 STRIP BUMPER. Gray thermoplastic rubber

The Darnell-Rose 85-24-PXAE-CB caster is a must have in any application.  The 5" diameter Advanced Elastomer wheel gives you the needed strength of 1000 lbs load capacity while providing durability...