Thermoplastic Rubber Swivel Threaded Stem Caster Set of 4 w/5" x 1.25" Gray Wheels and 12MM Stems - Includes 4 with Posi Lock Brakes - 1200 lbs Total Capacity - Service Caster Brand

These Service Caster Series #20 Thermoplastic Rubber casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 3-1/2” wheel: 4-5/8” mounting height; 4” wheel: 5-1/8” mounting height; 5” wheel: 6-1/8” mounting height; 6” wheel: 7-1/8” mounting height.