This is a protective keyboard cover. Made of silicone, durable for use. It is and not easy to deform. It can protect your keyboard from coffee, water, dust and some other . It is very convenient and easy to clean and store. Features -Material: Silicone. - Compatibility : Compatible for Dell KB216 wired keyboard, KM636 wireless keyboard, Optiplex 5250 3050 3240 5460 7450 7050 and 3475/3670/3477 -one desktop. Please check your keyboard to avoid incorrect purchase! - Notice: Please compare the laptop’s keyboard layout and model with the product picture to avoid buying an incompatible keyboard!! for any compatibility issues. Note: If the "Enter/Return" key looks like the Arabic "7", then this product is not suitable for your laptop! It works only for .S. version, and the "Enter" key is a rectangular. - Best protector: Smooth and comfortable to touch, this ultra-thin keyboard protector is designed to be waterproof and dustproof to protect your laptop keyboard from spills, dust, coffee, tea or wine, and other . - Practical: Durable and non-toxic. Provide a comfortable feeling when typing. Personalize the keyboard while adding extra protection. - Our service: 60 days replacement . , please us directly and we will try our best to solve them. Package list: 1 x Keyboard Cover