MAHLER GATES X-Shape Wheel Chocks Stabilizer,2 Sets 8'' to 17''[Extended] RV Tire Stabilizers Locked Chocks for Campers Travel Trailers Trucks

【Stable Wheel Stabilizer】Prevents tire shift by applying an opposing force to two tires and have bean-shaped design to increase friction
【10 Times Efficient】The central shaft can drive screw at both ends to operate at the same time, so the speed is 10 times faster than others
【Safe Code Lock】High-strength stainless steel combination lock to lock your wrench and stabilizer for safety, and the instruction manual is also included
【Fit】This X-Large super grip chock can reduce down to 10' and extending up to 17'. It is universal for all trucks, campers, travel trailers
【Comfortable Handle】Silicone sleeve handle which is anti-slip and comfortable to use.