product description 1. The strap is environmentally friendly and very durable. Will not deform or disintegrate after repeated use. It easily deepens your stretches, allowing you to stay in yoga poses for longer with more comfort and achieve more challenging poses. 2. Adjustable Metal D-rings: Two metal D-rings are designed on one end of the strap. While enjoying shoulder relaxation, you can more confidently maintain your balance and hold your position for longer, as the easy-release D-ring metal buckle holds the straps securely in place. 3. No matter the posture, experience or intensity, the shoulder straps will make your yoga class get the most out of it. Perfect for yoga, pilates, daily exercise, gym class, physical therapy, indoor and outdoor. 4. The strap is also machine washable, easy to clean even after sweating a lot. Over time, our straps soften with washing and regular use.