A. Fashionable appearance, and convenient, can be carried out at any time indoors, no need for a venue. B. The handle is designed according to the ergonomic principle to provide a comfortable feel. C. Spiral vibration devices are added on both sides, and the motion principle of dynamic inertia is adopted. D. Through the rhythmic back and forth vibration, it produces a vibration frequency that has a good effect on relaxing the human body. E. The exercise time is short and the effect is quick. Only 6 minutes of aerobic exercise a day can achieve the effect of relieving neck discomfort, arms and beauty. F. Colour: White G. Material: plastic + iron H. Package Contents:1 x dumbbell I. Only the above package content, other products are not included. J. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.