Pit Posse PP3102 Additional Base Plate For Motorcycle Self Locking Wheel Chock PP2900 Additional mounting base for Pit Posse's PP2900 Self Locking Wheel Chock. Allows you to move wheel chock between trailers, vehicles, or to use as a stand in your garage. Hardware included. Manufacture offers 5yr warranty on product. ***THIS IS A ADD-ON ITEM. DOES NOT INCLUDE ACTUAL WHEEL CHOCK***