Folox Thin Transparent Waterproof TPU Keyboard Protector Cover for Acer Aspire Touchscreen Ultrabook S7-391 S7-392 Notebook Ultra thin and high transparent, gives users a clear, unobstructed view of all the keys Waterproof and dustproof, protect your laptop against spills, dust, and other contaminants Amazing 0.18mm Thickness to minimize typing interference Made by non-toxic, durable, high-grade TPU material from Japan Flexible, Washable, easy to apply and remove for cleaning or disinfecting