WC-11-101 Wheel Chock WC-11-101 wheel chock (padlock NOT included) Two WC-1 chocks linked with chain, with tensioner For EXPOSED rail (60-141 lb) Lockable (padlock NOT included) WC-1 Wheel ChockWC-11 Wheel ChockWC-11F Wheel ChockWC-11-101 Wheel ChockWC-21 Wheel Chock