Universal design is suitable for everyone, up to 285 lbs. Gentle, comfortable, secure to use. The unique arches and padded C-shape handle prevent users from falling Gentle on joints. About 80% of the impact on joints is mitigated. Supreme quality. The mat and spring pad are made of highly durable material that is test approved. The springs are inaccessible. No pinching from springs. U-shape legs with anti-slip pads. Folds down for easy storage. Ideal for daily exercise, particularly for rebound therapy. NASA study finds rebounding is 68% more effective than jogging!