1. Exercise muscles, relieve stress, promote bone metabolism, and increase joint flexibility
2. Good toughness, good resilience, non-slip design
3. The handle is designed with water ripples, which fits the hand shape and feels comfortable to hold.
4. Material: Silicone + SEBS
5. Uses: beauty back, breast expansion, shaping, fitness, weight loss
6. Size: single hole about 37.5 x 10 x 2.2cm, double hole about 36 x 9 x 2.2cm
7. Weight: about 137.3g for a single hole, about 120.5g for a double hole
