The flexible keyboard can be used in the following conditions: It must be used on an even working surface. It can be used in the damp environment, even in shallow water. It can be used in acid and alkaline environment. It can be used in a dusty environment, even in sandstorms. It can be cleaned with alcohol or disinfector. It can not be contact with sharp object. It can not be contacted with oil or organic impregnate like acelone Toulon, and so on. It can not be pressed when it was rolled. If you are interested, we can give you more detailed information and can post you sample for your reference, but you have to pay for the sample delivery.