4 Piece Poly Bolt Hole Caster Set with 2 Posi Lock Brakes

The listing is for a set of four (4) service caster series #20 casters, two (2) swivel bolt hole casters and two (2) swivel casters with posi lock brakes, with 4” diameter by 1-1/4” wide blue solid polyurethane wheels. Supports a total weight of 1,200 lbs (300 lbs/per caster).