1. Enjoy a wider range of motion - Our stretch bands are perfect for yogis looking for "extra arm" length. It expands your range of motion so you can stretch and perform poses with better form more easily. 2. LONGER LIFE - Our workout straps are made of nylon to withstand the rigors of everyday use. It's made with a revolutionary tight weave technology for enhanced durability. 3. Versatility - Our nylon straps come with sturdy square metal buckles. This gives the strap more versatility, allowing you to attach it to doors, posts or sports equipment. 4. Suitable for most ages and skill levels - safe and suitable for children and adult yoga practitioners. Beginners, intermediate and advanced yogis will find these straps useful in their daily practice. 5.Assist stretching after exercise,relieve muscle soreness,improve muscle flexibility,and also improve back pain caused by lack of exercise for a long time.