Silicone Invisible Posture Corrector Anti-Humpback It can be used to

It can be used to warm hands

The key is for on-off and two gears

please use alcohol to sterilize sweat stains or wipe with a clean wet towel

dirt-resistant

providing a constant temperature hot compress for you

Silicone Invisible Posture Corrector Anti-Humpback It can be used toFeatures: Made of food grade silicone material, it is lightweight and durable, soft and skin friendly, not easy to deform, fits the human body curve, and is comfortable to wear. The built in high precision gyroscope chip is better and more stable than the ball chip on the market, which can accurately record the posture, monitor the change of the body inclination angle in real time, and vibrate to remind. The automatic memory function can intelligently