Stainless Steel Frame w/ Polyolefin Wheel (Black or White)(Heavy Duty)

Polyolefin Wheel, Plain Bore, Delrin Spanner, Stainless Steel Bolt Axle.

Caster top plate:

4" X 4-1/2".

3/8" X 3/4" slotted holes on 2-3/4" X 3-3/8" centers.

lbs. Capacity:

4" x 2" = 300 lbs.

5" x 2" = 500 lbs.

6" x 2" = 600 lbs.

8" x 2" = 600 lbs.