Buyers Rol-A-Blade Caster Set.

* Heavy Duty Powder Coated Base.

* Independent And Locking Caster Are Replaceable.

* Capacity 350 lbs. Per Dollie.

* Approx. Size of One Caster

   6.25" sq. x 4.75" H (Back) x 3.5" H (Front)

* 3 Independent Casters And 1 Locking Caster.