... 1.106keys flexible keyboard 2.flexible/portable/roll up/silicone/waterproof keyboard 3, KB-2003N 4, Made of silicone ... of imported high-end medical-grade silicone materials, non-toxic, tasteless and harmless. 2, all-sealed design, waterproof, dustproof, ... Special Note: may not be touch with high-temperature materials such as cigarettes and so on. 106keys high quality silicone waterproof keyboards