Stop your RV from rocking and rolling with these heavy-duty X-shaped wheel chocks! The scissor design applies opposite force between tandem tires to prevent movement on uneven ground or slight slopes. Made from powder-coated iron that won't rust easily, these stabilizers expand from 3 to 11.6 inches to fit most RV tire setups. The included hex socket lets you use a power drill for quick installation - no hand cranking required! The password locks (no keys to lose!) keep everything securely in place once extended. Comes with 2 stabilizers, 2 password locks, hex socket, handle driver, gloves, and a sturdy plastic case for storage. Just measure the space between your tires before ordering to ensure proper fit. Whether you're camping for the weekend or parked long-term, these stabilizers make your RV feel more like home by eliminating that annoying sway when people move around inside. Your coffee mug will stop sliding across the table, we promise!