1. GREAT AB AND UPPER BODY TURNS - Strengthens your abdomen, shoulders, arms and back all at once, so you get an effective all-in-one workout. Specification: Material: Engineering Plastic Applicable occasions: body building, health care massage, running movement Size: 18 x 24 x 80cm/7.08 x 9.44 x 31.49in Package: Specialized box Weight: 485g Scope of application: Outdoor, Home, Gym, Office 2. Stability - Double wheels allow for greater stability than models with just one wheel, so you can focus more on safely strengthening your ABS and less on trying to control the movement with your arms. 3. EASY GRIP - The easy-to-grip handles are designed with slots for your fingers to improve comfort that will not easily slip while rolling. 4.Simple and Effective - This simple tool can be used at home, at the gym, or anywhere you want to squeeze in your workout. Despite the small size and low price, it is an incredibly effective abdominal tonic, even for the most advanced users. 5. Quick Assembly - Requires minimal assembly, is quick and easy to assemble, so you can exercise your core and abdominal muscles right away! The size is small, simple to store and carry, no disassembly is required.