Return Policy Fast Delivery Trusted seller Heavy Duty RV Leveling Blocks 11 Pack, RV Accessories, Interlocking Design Camper Stabilizer Blocks for Customizable Height, Camper Leveling Accessories with Carrying Bag Product Description [11 BALANCING BLOCKS]: Our leveling blocks include 10 interlocking balance blocks and 1 top rubber block. Each block measures 8.4"(L) x 8.4"(W) x 1.46"(H). It keeps the RV stable outdoors, and the four-grid extreme load-bearing design keeps your RV from sliding away easily [STRONG AND RELIABLE]: The camper leveling blocks are made of high-density reinforcement materials to provide reliable support for RV wheels. Strictly structurally designed for maximum stability, the solid bottom structure prevents it from sinking on soft surfaces [CUSTOMIZABLE HEIGHT]: Simply stack them in a pyramid shape to the height your RV needs to be lifted, and push them onto the leveling blocks. Each additional leveling block will increase the height by 1 inch for precise leveling. The durable leveling blocks can be used to level a variety of RVs and other vehicles, and can also provide stable support for vehicle stabilizers [EASY STORAGE AND TRANSPORTATION]: Lightweight and stackable, each set comes in a zippered storage bag with a handle for easy transportation. They can be stacked together securely, saving you valuable storage space, not easy to scatter, convenient for storage [WIDELY USED & LIFETIME WARRANTY]: RV leveling blocks can be used for single wheel, double wheel, tongue jack, fifth wheel jack, hydraulic jack, tandem wheel and stabilizer jack. They can work perfectly with various types of leveling blocks and jacks. If you encounter any problems, please feel free to contact customer service Shipping Returns Payment Shipping Shipping is FREE to all addresses other than APO/PO boxes in the lower 48 states. All our stock ships from US-based warehouses. Shipped via USPS or UPS (depending on location and package weight) Unless stated otherwise, all orders will ship within 24-72 hours of your payment being processed. Check our feedback to see the great reviews of FAST shipping we offer. Returns Seller does not accept returns Payment We currently accept payment via eBay managed payments only. Once payment is cleared, we will dispatch your shipment within 1-3 business days. Please refer to the "Shipping" tab for more information regarding shipping speed to your destination.