Lets face it. Hours upon hours at your computer exposes your keyboard to an endless barrage of particles that range from dust to food - not to mention key wear. That's why iSkin created ProTouch keyboard protectors for MacBook. This Skin is specially made from a high-grade silicone that is far beyond yesterday's plastic keyboard protectors and is precision molded to fit over and protect each key without sacrificing the normal typing experience. Since silicone is moisture resistant it creates an effective barrier between you and your keyboard protecting it and ultimately your computer from possible harm.