Description: Quality Materials: This desktop punching speed ball is crafted from premium PU leather, ABS, stainless steel, and PU foam, ensuring long time durability and a smooth punching experienceCompact and Convenient Design: With a height of 40 cm and a base diameter of 17.7 cm, this Desktop Punching Bag is suitable for any desktop setup. Its lightweight, making it easy to move and storeEasy Installation Process: Boxing Bag Speed Ball is easy to install, inflate the ball using the included pump, securely attach the ball to the base with the foam connection rod, and press the base onto a clean flat surface for stabilityStable Rebounded Mechanism: Equipped with quality spring steel that ensures consistent rebounded without breaking, allowing for smooth strikes that keep up with your rhythmVersatile Surface Compatibility: Designed to adhere securely to various surfaces such as tile desktops, wooden tables, making it adaptable for different environments Specification: Material: PU Leather, ABS, Stainless Steel, Pu Foam Size Chart: 40 cmx17.7 cm/15.75 inchx6.97 inch Package Includes: 1 Base1 Pump1 Ball1 Connecting Rod1 Pair Kids Gloves Note: 1. Please allow slightly error due to manual measurement.