Level and stabilize your RV while parked with the Valterra 15-0973 Leveling Block Stackers Set of 10. These interlocking plastic blocks provide a convenient solution for leveling an RV, supporting a jack, or stabilizing a tongue wheel. Each block measures 8 inches by 8 inches, with ten 1 1/2 inch blocks providing up to 15 inches of total lift. The attached easy-grip handle helps create a smooth transition ramp between stacked blocks, while the self-fastening strap keeps the set together for storage. Designed for RV applications up to 40, 000 pounds gross vehicle weight. Features:• Interlocking blocks make stacking easy• Multi-use design supports leveling and jacking• Attached handle creates a smooth transition ramp• Self-fastening strap keeps blocks together for storage• Durable plastic construction supports repeated useSpecs:• Brand: Valterra• Product Number: 15-0973• Manufacturer Number: A10-0918• Type: Block• Height: 15 inch total lift• Block Height: 1 1/2 inches• Capacity: 40, 000 pounds• Dimensions: 8 inch length x 8 inch width• Color: Red• Material: Plastic• Quantity: Set of 10• Storage Bag: No• Marine: No• Warranty: Limited 1 year Four-piece support set Multi-use leveling Stackable design | Valterra Leveling Block Stackers, Set of 10 "15-0973