Superior Quality Construction - Crafted from premium stainless steel and high grade sponge. The stainless steel frame resists bending under heavy pressure, while the sponge covered parts provide a secure grip during workouts, preventing slips and enabling confident training. Dual Bar and Enhanced Suction System - Two large suction bases for enhanced stability. The large suction cups cover a broad area to secure grip during exercise, improving adsorption, anti slip performance, and overall safety during workouts. Three Tier Height Adjustability - Three distinct height settings to customize the equipment to the ideal height. Suitable for an immediate perfect fit or gradual progression, addressing the limitations of using a single height for extended periods. Ergonomic Excellence - Ergonomic heel groove designed based on biomechanics provides firm foot support. By optimizing force distribution and comfort, it boosts sit up efficiency and helps achieve better results with less effort. Practical use scenarios - Home gym core training: attach to a clean floor, perform sit ups and other core exercises with stable footing, and easily adjust height to suit different users. - Small studio or shared gym: stable dual suction bases support group workouts and allow quick reconfiguration for multiple users. - Progressive training or rehabilitation: adjust height in small increments to gradually increase difficulty while maintaining proper form and comfort.