WORKOUT EQUIPMENT: Hamstring curl strap is the perfect waist and abdominal workout equipment allowing for better sit-up form by keeping your feet planted on the floor and maximizing core abdominal and hip flexor muscle activation. STABLE AND COMFORTABLE: A sturdy sit-up aid. The center bar of the hamstring curl band is made of steel for maximum stability and control. High-density foam padding provides comfortable foot or ankle support, and thickened nylon webbing ensures long-term use. ADJUSTABLE STRAPS: The hamstring curler is easy to use and allows adjustment of the straps for a better fit or comfort. Adjust the strap, place this device under the door, close the door, and insert your foot or leg to begin sit-up training. EASY TO CARRY & STORE: This efficient sports equipment can be rolled up and stored in backpacks or suitcases when not in use. Use it on smooth and clean floors in offices, bedrooms, living rooms, parks, and more. EASY SET UP: Each hamstring curling machine comes with an illustrated user manual. The sophisticated design makes it easy for anyone to use. Refer to the manual for installation. Product Quantity: 1 Piece Product Color: Black Product Size: 31cm x 30cm