• Steel tube and foam base: Built with load-bearing steel tubing and a dense, nonslip foam surface. The foam is sweat-absorbent, odor-resistant, wear‑resistant, and designed for long-term durability and comfort. • Easy installation: Use on a smooth floor. Clean the floor and suction cups, place the cups, press to expel air, then switch the exhaust/lock to secure the unit in place. • Multifunctional design: Measures 28 x 17 cm with a base about 13 cm and a sponge thickness around 7 cm. Not limited to situps—supports a variety of core and lower-body movements to add versatility to your routine. • Stable and efficient: Compact, stable construction with solid heel support to enhance balance and training efficiency, helping you achieve consistent workout results. • Practical usage scenarios: - Home core training: Perform situps, leg raises, and other abdominal moves to strengthen the waist and core. - Small-space or office breaks: Quick, 5–10 minute workouts during downtime without taking up much room. - Beginner to intermediate progression: Add variety to your routine with controlled movements that are gentle on the joints while improving stability.