Phenolic Wheel Swivel Square Stem Caster Set 2 Brakes SCC

Listing is for four (4) Service Caster Series #20 swivel casters, two (2) swivel & (2) swivel with top lock brakes, with a 3-1/2” diameter by 1-1/4” wide black phenolic wheels and a 7/8" square stem. Supports a total weight of 1,200lbs (300lbs/caster).