Features 1. Practical Design: Our desktop sandbags can be connected to wood, glass, tiles, or marble, with a suction cup of 70KG. You can enjoy a perfect stress relief experience. 2. High Quality Material: Our vent bracket is suitable for use as it is made of high-density and durable suede PU leather. You will never worry about air leakage during use, as its top is hand sewn. 3. Suitable For Decompression: This sandbag has a decompression function. When you are feeling down, you can use it to vent negative emotions and also relieve fatigue from long hours of work. 4. Wide Range Of Use: Our stress relieving desktop sandbags are suitable to help you reduce different types of stress. You can place this stress relieving desktop sandbag at home, office, school, and other places. 5. Useful Alloy Springs: Adults and children can use our sandbags to easily calm them down because their springs are very durable. Every time you hit a boxing ball, it bounces back. Specification Product Material: PU leather+ABS+stainless steel+PU foam Size: height 40cm, base diameter 17.7cm, foam connecting rod height 13cm Weight: 800 g Package Include: 1x Sphere 1x Connecting rod 1x Base 1x Pump