Features: One twister bar comes with three weight modes, change the holding position to change the weight. The handle is treated with anti-slip and anti-off treatment? fitness while ensuring safety. Note? 1. Check whether the adjacent parts of the brachial force device are stable and free of looseness before use. 2. Choose a weight level suitable for your physical strength, and avoid muscle strain. 3. Choose a relatively spacious field to temper. Package includes: 1×power twister