UPGRADE STRONG SUCTIONUpgraded rubber suction chassis has a larger area and stronger suction. Double suction cups made of natural rubber provide super stability, grip, and safe, allowing you to exercise at ease. SAFETY STICKERS: Safety stickers made of premium materials can be used on wooden floors compared to other products without any harm. Please tear off the film on the suction cup before use, and press the product on the sticker with your body weight. Note: Squeeze out as much air as possible before lowering the lock. ERGONOMIC DESIGN: High-density soft foam covering the handle is comfortable and non-slip while avoiding ankle injury. Sit up equipment with double-row support bars strengthen heel force, exercise more efficiently and balancedly, and help you become a perfect body. MULTIFUNCTIONAL AND ADJUSTABLE: Sit-up assistant device supports a variety of sports modes and can be adjusted in height. You can perform push-ups, abs master, planks, yoga, buttocks bridges, sit-ups, stretching, and other exercises. You can adjust the most suitable height according to your needs. EASY TO USE AND PORTABLE: Sit up bar floor is simple to install and easy to use, and it is light and portable. It is an efficient sports equipment that saves time and money. You can exercise multiple types of smooth and clean floors in offices, bedrooms, living rooms, parks, etc.