The foot warmers are not directly attached to the feet, but separated by a layer of socks, otherwise it will be easy to cryogenic burns.

Operating steps:

1. Take out the foot warmers from the plastic packaging and tear off the protective tape at the back.

2. Rinse the surface of the adhesive tape, put it aside and wait for 10 minute for heating.

3, there must be socks on your feet, so it is not easy to burn.

4. Stick the side to the center of the foot with adhesive tape.