... green product . 3. foldable ,waterproof , dustproof , soft silicone keyboard cover 1.Material :silicone 2.eco-friendly , green product . 3. foldable ... ,waterproof , dustproof , soft Silicone Keyboard cover Features: 1. material:top grade TPU ,SGS. ROHS pass2. suitable ... typing,extend the life cycle of the keyboard,4. protect the computer from liquid,power,dust 5. ultra-thin ...