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C.E. Smith Metal Wheel Chocks$25.69
Wheel Chocks Prevents trailer from rolling Folds flat for storage in minimal space Protection against slippage anytime a trailer needs to stay put. Strong heavy gauge metal chocks fold flat for transport and set up in seconds.Convenient carry package of two.Each folded 5 x 6 x 1 14. Each set up 5 x 6 x 4.