1.The stretch strap is made of high quality nylon and polyester-cotton,durable and tear-resistant, ensuring the comfort of your ankleeven if used for a long time, it will not wear out easily. 2.They provide additional stability during unassisted stretches and poses. Help you lengthen the muscles around the joints, increase the range of motion and thus helps avoid injuries. 3.The stretching strap is often used for rehabilitation physiotherapy,It can also be used for yoga, pilates, ballet and rock climbing,they stretch the muscles around the joints, thereby increasing freedom of movement and preventing injuries and improving flexibility. Size: one size adjustable Material: SBR composite, nylon webbing Applicable scenario: fitness and body beauty Color: Black / Blue / Red Weight: 149g Package Includes:1 * Stretch Belt