8 Plate Casters 5" Polyurethane Wheels All Swivel All Side Brakes Tough Caster Set includes: 8 swiveling caster wheels; all 8 wheels have side brake mechanisms Wheel Size: 5" diameter x 1-1/4"; Plate Size: 3-3/4" x 2-1/2"; Bolt Pattern: 3" x 1-3/4" Load Rating: 1,320 pounds total per set of 4 (330 pounds each) Premium swivel design, with two rows of ball bearings Heavy duty non-marking TPR rubber wheels