At Allen Field, we stay on top of market trends to ensure you always get the most up-to-date solutions in the packaging industry.The Display Caster is an innovative rolling system that enables heavy display units or containers to become easily movable around a store, warehouse, or in transit. This product is easily installed on the bottom tray of a carton, with no additional tools needed! A set of 4 casters carries up to 140 lbs.