12 Inch Super Heavy Duty Green Poly Wheel Swivel Caster and Welded Swivel Lock

Mounting Height: 15-1/2" Weight Capacity: 6,000 lbs. Top plate measures at 8-1/2" x 8-1/2" with a bolt hole pattern of 7" x 7" and can either be bolted or welded on. Brake options include a welded-on swivel lock (WSL) that when inserted into one of 4 notches found on the swivel raceway converts a swivel caster to rigid for straight-line tracking at any 90 degree angle.