Heavy-Duty Weld Jack Pad for Vehicle Protection - This weld frame rail protector shields your car's frame from damage during lifting and welding, providing secure and stable vehicle support. Special Slotted Design for Stability and Fit - Precision-engineered slotted design securely fits most vehicle frames, making it compatible with cars, trucks, SUVs, and RVs. Durable and Resistant Material - Made from high-strength rubber and reinforced construction for long-lasting durability, excellent resistance, and reliable lifting support. Anti-Slip and Secure Vehicle Lifting - Textured surface prevents slippage or shifting, ensuring a firm grip on the frame rail for professional auto repairs and vehicle maintenance. Use scenarios - Use while lifting a sedan or SUV for undercarriage welding or frame repair in a home garage or professional shop. - Use when welding frame crossmembers on a pickup or SUV, or during exhaust, suspension, or mounting work that requires stable frame support. - Use to stabilize the frame rail during alignment or when installing aftermarket components that require secure, slip-free lifting.