... -end medical-grade silicone materials, non-toxic, tasteless and harmless. 2, all-sealed design, waterproof, dustproof, anti-oil, anti-acid, can ... . 5, special design and production process, so that the keyboard is lean, and use of special high-strength silicone adhesive glue ... smoking the white-collar workers, or the work environment has much dust. 2, laptop users - can use soft silicone keyboard as an ...