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, avoid muscle strain.3. Choose a relatively spacious field to temper.Package includes:1×power twister