1. Environmentally friendly materials: Keyboard cleaning gel made from biodegradable vegetable rubber. It's non-sticky, smells sweet like lemon or mint, does not stimulate the skin, and can be used with confidence. 2. Efficient cleaning gel: Simply place the cleaning gel on the surface to be cleaned, press it lightly, and then slowly pull out the keyboard cleaning gel. This clean gel can penetrate every corner to thoroughly clean your devices 95% dirt, crumbs. (Note: Do not press the laptop cleaner too hard, especially on mechanical keyboards). 3. REUSABLE: This keyboard cleaning is not a disposable item. When the cleaning is finished, just put the keyboard cleaning putty back in the box and keep it cool, the next time it can still be used until the keyboard cleaning gel get too dark. 4. Universal cleaning gel: This multifunctional keyboard cleaner can be used for cleaning PC / laptop keyboard and other sturdy surfaces such as car vents, cameras, printers, cell phones, calculators and speakers. The suitable surface must be water-repellent, otherwise the laptop keyboard cleaner will stick. 5. Easy to use: Take a piece of the cleaning gel, knead it into a ball, slowly push the cleaning gel into the keyboard, auto-vent and other sturdy parts, gently push and roll, then slowly pull up , the dust would be carried away with the cleaning gel."