• FUNCTIOPN: Stabilization and prevent the tires from moving by applying opposite force to the tandem tires,prevent the tires from sliding on a slight slope
• HIGH SECURITY: When the wheel stabilizer is extended to the right position, we are suing password locks to lock the holes, don't worry about the keys losing
• TIME-SAVING INSTALLATION: With the included drill bit you can quickly adjust and install Maxchock x wheel chocks with any power drill in seconds – no hand cranking
• MATERIAL: Stronger and more durable, made of heavy duty iron, improve firmness and stability. surface zinc plated for silvery color , and powder coated for black, grey and red color, it won't rust easily
• STORAGE: Included 2 chock stabilizer, 2 password locks (no key required), 1 hex socket, 1 handle driver, bag and gloves
• SIZE: The expand space range from 3”to 11.6”, need to measure the size between the tandem tires of your RV before placing an order
• CARRYING: Packed in strong plastic gift box.