Material: TPU Eco-friendly Anti-bacteria (nano silver particles added, kills 99.9999% of 650 sorts of germs) Extra thin: 0.2mm only, keyboard covers Non-toxic keyboard covers Durable for millions of typing and protects keyboard Extra transparent covers, even invisible Mute-typing (muffle typing noise in libraries and conference room) Transparent (very easy to see the characters on the key) Elastic and comfortable for typing Waterproof (prevents water, coke, fruit, juice and coffee from laptop) Dustproof (prevents dust, cigarette ash and biscuit bits from the keyboard) Washable and reusable Color available: transparent Thickness: 0.2mm Dimensions: based on laptop model Net weight: 12 ±5g