Check the listing for details. RV Camper Wheel Chock Stabilizer Rv Wheel Chock X Locking For Travel Trailer. Condition: New other (see details). Listed at 37.49 USD. Brand New, Scratch and Dent item. Minor scratches (SEE PHOTOS) Fits between tandem tires, it locks (lock included) wheels by applying force to both tires. Aids in trailer stabilizing and prevents tire shifts. A hand operated plated ratchet wrench (included) turns a drive nut, extending the chocks against the tires for locking and retracting the chucks removal. Prevent tandem-tire shift using just one piece of equipment Cynder's Deluxe Metal Wheel Stop. Raised ribs on the contact surface for increased traction which helps prevent tire shift/slippage between tandem tires spaced from 3" - 10" apart. It also includes a ratchet wrench for easy installation and security lock for piece of mind. Two per pack. Brand New, Scratch and Dent item. Minor scratches (SEE PHOTOS)Brand New, Scratch and Dent item. Minor scratches (SEE PHOTOS) Fits between tandem tires, it locks (lock included) wheels by applying force to both tires. Aids in trailer stabilizing and prevents tire shifts. A hand operated plated ratchet wrench (included) turns a drive nut, extending the chocks against the tires for locking and retracting the chucks removal. Prevent tandem-tire shift using just one piece of equipment Cynder's Deluxe Metal Wheel Stop. Raised ribs on the contact surface for increased traction which helps prevent tire shift/slippage between tandem tires spaced from 3" - 10" apart. It also includes a ratchet wrench for easy installation and security lock for piece of mind. Two per pack. Brand New, Scratch and Dent item. Minor scratches (SEE PHOTOS)