Gold Key Equipment offers upgraded Kingpinless glass-filled Nylon casters created from striking high-tech glass-infused nylon (RX).
These have a higher level of toughness than conventional glass-filled nylon, are superior to steel or cast iron in terms of floor preservation, and do not absorb moisture like phenolic. It has a black tread resistant to most chemicals, solvents, gasses, acids, and steam cleaning.