face:100% polyester. back: Styrene-butadiene rubber
It is recommended to change one AA battery once every 6 months.
When the time shown by the clock is inaccurate or the hands stop,replace the battery before the circuit and movement of the clock are corroded by battery leakage.
If you do not want to continue using the product,remove the battery in time.Clean your clock with a soft and clean cloth but not with any liquid containing chemical solution.
Containing precise parts and fragile glass,falling,knocking and strong vibration of the clock may lead to inaccurate time shown by it or breaking of the glass. Do not press the glass with large force.
face:100% polyester. back: Styrene-butadiene rubber
Keep away from fire.