Adjustable Length: Adjustable webbing length for a better fit or comfort, no assembly required, easy and quick, when using, place this device under the door or on your bed and start your ab workout in just one minute Multipurpose: Wide range of applications for sit-ups, squats, abs, core training, yoga, pilates and exercise bands, great for increasing strength and flexibility, for adults, teens and beginners and other fitness hobbies By. Easy to use: To use, just put this device under the door, close the door and put your feet or legs in, allowing you to quickly enjoy your sit-up workout for a better fit or comfort Premium Material: Encrypted nylon braided belt, washable, foam support frame, strong load-bearing, durable, comfortable and reliable to use, not easy to break or wear, you don't have to worry about uncomfortable legs. Easy to carry and save space: when not in use, you can easily roll it up and put it in your backpack, it won't take up much space like a huge fitness machine, easy to carry to dorms, offices, hotels and other places, even in the You can also exercise while traveling. Description: The webbing can be adjusted to a length that fits you the most, suitable for fitness people of most heights and weights, it is more convenient and effective for you to work out. Suitable for adults, teens and other fitness enthusiasts. Specification: Name: Hamstring Curl Strap Size: about30*31cm, stretch: 48*31cm Features: no installation, convenient, lightweight Packing List: 1pcsHamstring Curl Strap Note: Please allow slight tolerances in size due to manual measurement, and lighting in photography may result in a difference in color than in real life.