Schioppa GL 412 UPE G L12 Series 4" x 1-1/4" Diameter Swivel Caster with Total Lock Brake, Non-Marking Polyurethane Precision Ball Bearing Wheel, Plate 3-1/8" x 4-1/8" (Bolt Holes 3-1/8" x 2-1/4"), 275 lb