4 Piece Rubber on Aluminum Caster Set

Listing is for a set of four (4) service caster series #35 casters, two (2) swivel casters with side lock brakes & bolt-on swivel locks and two (2) swivel casters with bolt-on swivel locks, with 6" diameter by 2" wide rubber on aluminum wheels and maintenance free precision ball wheel bearings. Capable of supporting a total weight of 2200 lbs. (550 lbs./caster).