TPU Keyboard Cover Skin for ThinkPad S3 YOGA 14 T440S T450S T431S L440 L450 S440 Laptop Keyboard Protector for ThinkPad S3 YOGA 14 T440S T450S T431S L440 L450 Ultra thin and high transparent, gives users a clear, unobstructed view of all the keys Waterproof and dust proof, protect your laptop against spills, dust, and other contaminants Removable and washable, the free cleaning without affecting the effectiveness of their use Provides a comfortable, non-slip feel that quiets keystroke noises