Description: High elasticity, wear resistance, high strength, hardness, ductility and excellent temperature adaptability. Excellent bio-non-toxic, waterproof, breathable, oil-resistant, water-resistant, mold-resistant, temperature-resistant, at -60 ° C - Long-term flexibility in the range of 200 ° C. Excellent physical properties determine that a dedicated transparent keyboard membrane can withstand more than 3 million taps with a single key. 0.2mm ultra-thin design, only 1/2 of the thickness of ordinary silicone film TPU. Have a good feel and super high transparency. Fits snugly on the keyboard surface without affecting any keyboard operation. Specification: Suitable for Apple Macbook Air Pro 13inch 15inch 17inch Package Includes: 1 Piece Keyboard Cover