Size: 17cm wrist ring- Elasticity to fit any wrist.
Weight: 10g. So light that you do not feel it.
Materials: High quality silicone rubber with Electronic watch.
Manufacturer rated:
- Atmosphere (1ATM) water resistance
- Ionizer (1900 ions/cc) and "far infrared ray" (>90%) help reduce fatigue and stress
- Powered by battery (included)