[Durable]: The elastic waistband is made of high quality material and is very durable. [Wide application]: The chest extender is very suitable for sports warm-up, can improve sports and yoga skills, and can help you exercise your arms, shoulders, chest, back, etc. [ Easy to use]: The chest extender is very easy to carry, whether at home or in outdoor sports. Detachable multifunctional rubber yoga stretcher with 5 drawstrings Suitable for sports warm-up, improve sports and yoga skills. The elastic waistband is made of high quality material and is very durable. Exercise the arms, shoulders, chest, back, etc. Convenient to carry, convenient for home or outdoor sports. Specification: Material: TPR, PP Package list: 1 * stretcher