1.We offer you this excellent air pneumatic dent repair tool made of high-strength galvanized steel, which is hard, wear-resistant and oxidation-resistant so that it is not easily damaged in the repair process. In addition, 3 different-sized suction cups can adapt to different shapes and sizes of dents, enhancing the convenience and effectiveness of car dent repairs. 2.Powerful Repairing Capability: It utilizes the power of compressed air to create a powerful suction for removing dents from a variety of sheet metal surfaces without damaging paint. 3.Easy to Use: You just need to connect the air pump (not included), turn on the switch at the top of the hammer, align the suction cup with the dented part of the car and pull up and down to strike the cylindrical hammer to repair it! 4.Multiple Choice: It offers three types of suction cups (3.15in, 4.65in, 6.1in) for different sizes and shapes of dents. With this air pneumatic dent puller, you can fix different types of dents and make your car look brand new. Details Reliable Copper Air Intake Valve: This valve links to an air pump (not included) to provide the power source for the vacuum slide hammer and aids in airflow control to match dent repair requirements. Non-slip Suction Cups: The rubber suction cups are more wear-resistant, can stably attach sheet metal parts, and will not scratch or wear the car paint surface. Application It is suitable for repairing car dents, door dings, sheet metal, and more. It is suitable for homes, car repair shops, car maintenance shops, and so on. Specifications Material: Steel, Rubber, Copper Process: Galvanized Color: Silver Assembly Required: Yes Joint Diameter: 10mm/0.4in Large Suction Cup Diameter: 15.5cm/6.1in Medium Suction Cup Diameter: 11.8cm/ 4.65in Small Suction Cup Diameter: 8cm/3.15in Total Product Length: 57cm/22.44in Package Size: 55*20*20cm/21.65*7.87*7.87in Gross Weight: 4kg/8.82lbs Net Weight: 3.8kg/8.38lbs Package Included 1* Air Pneumatic Dent Puller 3* Suction Cups Other Accessories for Assembly Notes 1.It needs to connect the air pump to use. The air pump and hose are not included in this package. 2.Please observe the size and depth of the dent, and then select the right suction cup for repair. Please note that it targets severe dents, not small pits. 3.Our product is a professional automotive tool. This product does not include the manual. You should only purchase these tools when you are familiar with how to repair cars. 4.Proper use of this tool is crucial for preventing unnecessary harm. Please do not use it with too much force. 5.If you find the tool won't stick to the car, please check whether the hole is blocked by dirt.