High quality: The portable sit-up bar is made of natural rubber, which is strong and durable. The handle features foam padding for comfort, is wear-resistant, environmentally friendly, easy to grip, and provides safe and convenient use. 12.5 cm suction cup: The portable sit-up bar includes a thick silicone suction cup with a diameter of approximately 12.5 cm. The strong suction cup securely attaches to the floor and is suitable for smooth surfaces such as tiles and marble floors. Flexible and adjustable: The portable sit-up bar has a spring buckle and offers four adjustable height settings. You can adjust the height to suit your individual needs based on your body height. Easy to carry: The portable sit-up bar is compact, lightweight, and space-saving, making it easy to transport. It is a great choice for abdominal training. Multiple functional uses: The portable sit-up bar can be used for sit-ups, planks, push-ups, and other core exercises. Product dimensions: 26 x 13.5 x 11 cm