Material: Non-toxic, Durable High-grade TPU ( Thermoplastic Polyurethane ) * Thickness: < 0.18mm * Waterproof and dustproof, protect your laptop against spills, dust,and other contaminants * Flexible, Washable, easy to apply and remove for cleaning or disinfecting * Compatible models: 1.macbook regular , 2. macbook Pro (or not PRO) aluminum, new or old 13", 15" or 17" , 3. macbook air 13.3 , 4. IMac Wireless keyboard, No AZERTY/EU keyboard please!