1. Material: ABS+silicone
2. Function: relieve thigh soreness; relieve calf muscle tightness; relax biceps; relax back; relieve waist soreness; foot massage
3. One-key start, four-speed adjustment
4. Portable, compact and convenient
5. With high sealing and waterproof design
6. Deeply relieve muscle fatigue after exertion
7. Dimensions: 170x100 mm
8. Weight: 536 grams