The Shepherd 4 in. Rubber Caster Kit allows you to replace or provide a new set of wheels for a push cart and will fit the inch. Rigid On Site Construction Boxes inch. The kit includes 2 rigid casters, 2 swivel casters for maneuverability and 16 mounting bolts for easy installation.
CASTER KIT: 4″ (100mm) 2-Swivel Plate, 2-Rigid Plate, 16-Mounting Bolts