Bodu Thin & Clear TPU Keyboard Cover Protector Skin for Thinkpad T431S T440S T440P T440 E440 L440 Made with durabe non-toxic and high-grade TPU material, thinner and more transparent Touch well, press can be controlled, no noise, good feeling and environment friendly Flexible and washalbe,easy to remove for cleaning without affecting the durable use Waterproof and dust proof,provide full protection against dust dirty and liquid spill Harmless to human body with excellent softness, ensure comfortable usage while typing