And this type of dumbbell is unisex, the training difficulty is free to control, suitable for a wide range of people, it can be used in fitness muscle groups or with aerobic training.It does not hurt the ground or the hands, avoids hard touch, it is safe and silent during operation, and does not affect the rest of others.Safe, portable and environment-friendly, good for men, women, young and old, to get a healthy family.Feature: 100% brand new and high quality . Quantity: 2pcs. Material: PP material + iron sand mixture Colour：Blue/Pink/Red Weight: 1kg/1.5kg/2kg/3kg Applicable scene: home fitness, fitness club.