"Durable No-Stretch Strap - The stretch strap is made of high-quality woven nylon and will not stretch. The strong nylon strap is durable and can withstand heavy use.7-Section Separation--The stretch strap adopts force point separation, the gear position is freely selected, and the force point is stronger to meet the stretching needs of different people.Heel Positioning-Velcro fixes the heel and instep for a balanced, comfortable fit without tightening the foot.Safe and Effective Stretching-The extra-long stretch strap allows for safe and effective full-body stretching. Great for yoga, Pilates and physical therapy, warming up with a stretch strap can help prevent injuries and promote muscle recovery.Improve flexibility-The stretch strap provides additional stability during unassisted stretching and poses. Stretch straps are very effective for athletes, dancers or physical therapy to improve flexibility and increase range of motion while reducing the risk of injury."