[Double Suction Cup ]: Sit up Assistant features a double suction design for enhanced stability during your workout. It firmly grips the floor. [Rope Assistance]: The rope assistance makes situ ps easier, providing you with an efficient and effective abdominal workout. [Easy Installation]: The installation process is simple and only requires four steps - clean the floor with a damp cloth, press down firmly to ensure seamless contact, pull down the handles simultaneously, and finally test the suction force by pulling up on the foam. [Adjustable Height Settings]: This product offers three height settings to cater to different needs - 1 is suitable for primary school students aiming to build strength; Level 2 is ideal for women and teenagers; 3 is wonderful for men looking to improve their fitness levels. [Product Specifications]: Made from steel, Abdominal Muscle Exercise Tool measures 27cm in length (double suction cup), 16cm (upper crossbar), 27cm (middle sponge), with a foam thickness of 2cm, rope length of 40cm, and handle length of 26cm. Package includes 1 black unit.