Listing is for a set of four (4) Service Caster Series #30 casters, two (2) swivel casters with bolt on swivel locks and two (2) swivel casters with side lock brakes, with 5" diameter by 2" wide glass filled nylon wheel and maintenance free precision ball wheel bearings capable of supporting a total weight of 5,000 lbs. (1,250 lbs./caster).
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