Waist Twisting Board: Our rotating waist twisting disc adopts 3D massaging board to increase body flexibility.High Quality: This fitness equipment is made of high quality ABS, with high flexibility, wear resistant and stable.Waist torsion plate: The waist torsion plate for exercising the waist can load of 150kg and has of times.Non Slip Chassis: The stable and non slip chassis does not damage to floor for convenient using.Low Noise: This compact strengthening equipment is silent when training, suitable for adults, students and elderly, etc. Specification: Material: ABSColor: purpleSize(LxH): Approx.32cmx3.5cm/12.60inchx1.38inch Package Includes: 1Waist Twisting Disc Note: Please allow slightly errors due to manual measurement and different monitors.