Stabilize your RV with X-Chock Locking ChocksX-Chock Tire Locking Chocks provides added stabilization to your RV and prevent tire shifts by applying opposing force to tandem tire applications. The lightweight, slimmer design of the X-Chock locking chocks fit more applications than the original Deluxe Tire Locking Chock. As opposed to other chocks, the X-Chock works with the tires' natural movement instead of against them and fits even the tightest of applications. Fully made in the USA. Manufacturer's limited lifetime warranty. FEATURES:•Lightweight and easy to store•Rust-inhibitive coating for years of use•Plated ratchet wrench with comfort bumper included•Lockable for added security with optional padlock (sold separately) Works with the tires' natural movement Retracts down to 1-3/8"", extends to 10"" Plated ratchet wrench with comfort bumper included | BAL X-Chock Tire Locking Chocks, 2-Pack Made in USA