The YONEX Power Cushion absorbs shock then reverses the impact energy for smooth transfer into the next movement. Compared with urethane, the YONEX Power Cushion construction provides 3 times more shock absorbing power. When dropped from 7m above a Power Cushion sheet, an egg will bounce back 4m without damage A raw egg can be dropped from 12 meters above the POWER CUSHION+ mat, rebounding to a height of 6 meters without breaking. **Tested by YONEX** POWER CUSHION is a trademark of Yonex Co., Ltd. *Research by the Japan Vehicle Inspection Association & Boken Quality Evaluation (based on JIS standards) in comparison to conventional cushioning material (EVA).