The Shop Tuff Tandem Interlocking Wheel Chock has a capacity of 10 tons! This chock features a unique interlocking design to easily switch between 2 separate chocks and 1 tandem chock that can easily fit together and slide apart. This versatile wheel chock is lightweight and easy to handle and is resistant to oil, acid, salt, and UV. This wheel accessory is constructed of high-impact polypropylene to make this wheel chock durable and long-lasting. The interlocking wheel chock is perfect for use with tandem wheels to prevent accidental movement of your tires. The rubber base adds to the anti-slip design for added safety. This wheel chock measures 18 in. x 8.25 in. x 4.7 in. for the perfect size chock for all your needs. It is the wheel chock for tandem trailers and normal trailers alike! This product is perfect for campers, tandem trailers, trailers, and so much more while also coming with a 1 year limited manufacturer's parts warranty.