1. Weight (optional): about 900g/pair, 1800g/pair
2. Dimensions: 29.5 x 7 cm
3. Material: silicone, iron
4. Applicable people: general
5. Applicable scenarios: running, fitness, swimming, dancing, yoga, etc.
6. Features: soft silicone material, can be used by adults and children, comfortable to wear, detachable design, easy to use