Photo 1 of Caster Wheels 4 inch Total Locking Stem Casters, 3/8" -16 x 1" (Stem Diameter 3/8", Stem Length 1") Threaded Stem Casters Swivel Casters Set of 4 Heavy Duty Castors Black

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Photo 1 of Caster Wheels 4 inch Total Locking Stem Casters, 3/8" -16 x 1" (Stem Diameter 3/8", Stem Length 1") Threaded Stem Casters Swivel Casters Set of 4 Heavy Duty Castors BlackPhoto 2 of Caster Wheels 4 inch Total Locking Stem Casters, 3/8" -16 x 1" (Stem Diameter 3/8", Stem Length 1") Threaded Stem Casters Swivel Casters Set of 4 Heavy Duty Castors BlackPhoto 3 of Caster Wheels 4 inch Total Locking Stem Casters, 3/8" -16 x 1" (Stem Diameter 3/8", Stem Length 1") Threaded Stem Casters Swivel Casters Set of 4 Heavy Duty Castors Black