Premium Ultra Thin Keyboard Cover Skin for Lenovo ThinkPadE431,E440,E450,E455, E460,431S,T440S, T440P,T440,ThinkPad S3,X1 Carbon 2013 Version, L440,L450,S440,S3 Yoga- US Layout HIGH PRECISION Perfectly fit for US version 15" Thinkpad X1 extreme 2018,14" Lenovo ThinkPad E431,E440,E450,E455,E460,431S,T440S,T440P,T440,ThinkPad S3,X1 Carbon 2013 Version,L440,L450,S440,S3 Yoga ADVANTAGE1. Ultra thin 0.18 mm thickness. 2.Elaborately lower key height design to give you better type feeling, especially after long time typing. 3. Waterproof, dust-proof, removable, washable TPU skin, protect your keyboard from dust/spills/oily fingers. 4. Significantly REDUCES THE SOUND of your key switches REMINDPlease clean keyboard area and screen before using the keyboard protector REMINDTo keep typing covers soft, clear, to prevent keyboard-shaped smudges on the screen, we suggest washing it once a week; please keep it flat to wash, do not fold SERVICE Easy-to-reach friendly customer service (JRC), we have over 9 years high quality OEM production experience.If bought wrong keyboard cover, welcome to contact with us to get replacement.