Features:

Colson® 2 Series Rigid Plate Caster - Rubber on Polyolefin 3-1/2" or 4" Dia.

3.5" caster is rated for 300 pounds per wheel. Four wheels per cart equaling 1,200 pounds per cart.

4" caster is rated for 400 pounds per wheel. Four wheels per cart equaling 1,600 pounds per cart.