The abdomen wheel is easy to assemble, which features the ergonomic TPE rubber to be upgraded, and the sweat-absorbing hand grips, comfortable and practical. And the built-in thick steel provides perfect weight capacity. Features: The wheel measures about 3.5 inches in width, and the ultra-wide wheel support enhanced balance and stability, which will make your workout smooth. The wheel features the functional automatic spring back or roll back function to protect from pulling muscles, which is the finest exercise wheel, and it is easier for beginners, men, women and teenagers to use. The wheel is the slip-resistant TPE wheel, firm and silent, which won't damage the wooden floor surface and carpet. Portable to carry, a perfect home gym workout. The wheel is the anti-slip roller, which features the comfortable grip, silent design, stable force, convenient disassembly, safe bearing. And the wheel is suitable for family fitness exercise to keep you healthy. Specifications: Color: black, red, yellow, blue, white (optional) Material: TPE Wheel width: 90mm / 3.5in Wheel diameter: 160mm / 6.3in Item weight: 560g / 1.2lb Package size: 220 * 180 * 150mm / 8.7 * 7.1 * 5.9.in Package weight: 700g / 1.5lb Packing List: 1 * Abdominal Roller