Workout Equipment: The hamstring curl strap is the perfect waist and abdominal exercise equipment that allows you to do better sit-ups by placing your feet on the floor and maximizing the activation of your core, abs, and hip flexors. Ergonomic Design: The high-density soft foam padding on the handle is comfortable and non-slip while avoiding ankle injuries. Crunches with double supporting bars strengthen your heels for a more effective and balanced workout that helps you get in perfect shape. Stable and Comfortable: A truly sturdy sit-up aid. The center bar of the hamstring curl strap is made of steel for maximum stability and control. Thicker, curved, non-slip, high-density padded foam provides comfortable support for the foot or ankle, and thickened nylon material ensures long-lasting use. Adjustable Straps: The hamstring curler is easy to use and allows you to adjust the straps for a better fit or comfort. Simply adjust the strap when using it, place this device under the door, close the door, and insert your foot or leg so you can quickly enjoy your sit-up workout. Easy to Carry and Store: When not in use, the leg exercise straps can be rolled up and stored in backpacks, suitcases, and do not take up much space. Easy to take to dorms, offices, hotels, and other places. So you can exercise even when you travel.