Feature 1With Steel Spring: This boxing punch ball has steel springs, with 90 percents strong rebound, and it also has strong suction cups for good stability. 2Thickened PU Leather: The boxing punch ball is made of thickened PU leather, and the inner part is aerated. It has a good feeling of hitting. 3Large Ball Diameter: The desktop punching bag is designed with a large ball diameter. The diameter of the inflated ball is 20cm, making it more comfortable and playable. 4Wide Use: The desktop punching bag is widely used as children's toys, adult pressure relief appliances, sports equipment, etc. 5Note: Before adsorption, please wipe the bottom of the suction cup and the adsorption surface with a wet cloth for better adsorption effect.Item Type: Desktop Punching BagMaterial: PUGross Weight: 620g/21.9ozDiameter of Inflated Ball: 20cm/7.9in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Desktop Punching Bag1 x Air Pump1 x Inflating Needle1 x Base1 x Suction Cup Cover1 x Spring1 x Gasket2 x WasherNoteBefore adsorption, please wipe the bottom of the suction cup and the adsorption surface with a wet cloth for better adsorption effect.