Rubber Swivel 10mm Stem Caster Set 2 Total Lock Brake

Listing is for a set of four (4) Service Caster Series #20 casters, two (2) swivel 10mm-1.50 X 1-1/2" metric threaded stem with total lock brake casters and two (2) swivel casters, with 3” diameter by 1-1/4” wide thermoplastic rubber wheels. Supports a total weight of 840lbs (210lbs/per caster).