Description Made of premium material with heat resistance and cold resistance. This ultra thin keyboard protector helps protect your laptop keyboard against spills, dust, etc. 1:1 size design, so that the keyboard membrane and the keyboard accurately fit and integrate into one. The silicone keyboard cover is waterproof and dust-proof, can protect your laptop keyboard against coffee, tea, liquor and other contaminants. COMPATIBLE WITH:Perfectly fit for Dell KB216 Wired Keyboard & Dell KM636 Wireless Keyboard & Dell Optiplex 5250 3050 3240 5460 7450 7050 & Dell Inspiron AIO 3475/3670/3477 all-in one desktop,US Layout. Features -Color: Transparent.-Material: Silicone.-Size: About44.00X13.00X0.30cm /17.29X5.11X0.12inch.-Made of premium material with heat resistance and cold resistance.-This ultra thin keyboard protector helps protect your laptop keyboard against spills, dust, etc.-1:1 size design, so that the keyboard membrane and the keyboard accurately fit and integrate into one.-The silicone keyboard cover is waterproof and dust-proof, can protect your laptop keyboard against coffee, tea, liquor and other contaminants.-COMPATIBLE WITH:Perfectly fit for Dell KB216 Wired Keyboard & Dell KM636 Wireless Keyboard & Dell Optiplex 5250 3050 3240 5460 7450 7050 & Dell Inspiron AIO 3475/3670/3477 all-in one desktop,US Layout.Packing list: 1 x key board cover