1) Mute-Typing. (Muffle typing noise when you stay in libraries and conference room etc. )
2) Durable for millions of typing and protect your keyboard.
3) Transparent. (very easy to see the characters on the key)
4) Elastic and comfortable for typing.
5) Waterproof. (Prevent water, coke, fruit, juice, coffee, etc. From your laptop)
6) Dustproof. (Prevent dust, cigarette ash, biscuit bits from the keyboard)
7) Washable and reusable.