Photo 1 of 4 inch Casters 1 Inch Thread Stem Casters Heavy Duty Swivel Threaded Stem Caster Wheels with Screw Diameter 1/2''-13x1'' Length 1 Inch Thread Dual Locking Wheel with Brakes Pack of 4 (4 inch Caster)

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Photo 1 of 4 inch Casters 1 Inch Thread Stem Casters Heavy Duty Swivel Threaded Stem Caster Wheels with Screw Diameter 1/2''-13x1'' Length 1 Inch Thread Dual Locking Wheel with Brakes Pack of 4 (4 inch Caster)Photo 2 of 4 inch Casters 1 Inch Thread Stem Casters Heavy Duty Swivel Threaded Stem Caster Wheels with Screw Diameter 1/2''-13x1'' Length 1 Inch Thread Dual Locking Wheel with Brakes Pack of 4 (4 inch Caster)Photo 3 of 4 inch Casters 1 Inch Thread Stem Casters Heavy Duty Swivel Threaded Stem Caster Wheels with Screw Diameter 1/2''-13x1'' Length 1 Inch Thread Dual Locking Wheel with Brakes Pack of 4 (4 inch Caster)