Universal Use: Used to clean laptops, computers, phones, keyboard car air vent, dashboard, air conditioner etc. Catches over 95% of dirt, can effectively absorb dust and dust in the gap. Please note that: this product should not be stored at high temperature. The cleaning gel is easily hydrolyzed at high temperature for a long time, cause it to becomes close to a liquid state, which will let it can't work. Safe and Eco-friendly: Made of biodegradable material 100%, not sticky to hands, smell with good fragrance, no skin stimulation. While in use to absorb dust, the cleaning gel doesnt leave sticky or greasy residue on surfaces or hands. Keep your children away from it. Reusable & Durable: Can be used for multiple times until the color turns dark. Please put the gel into the sealed box after use and store it in a cool dry place. (Note: dont wash the cleaning it in water.) Easy to Use: This cleaning mud is soft and easy to use. Keep your hands dry. Take a piece of the cleaning gel, press the cleaning gel slowly into the keyboard, car vent and other rugged surface and then pull out, the dust would be carried away with the cleaning gel. Package: 2* universal cleaning gel/160g, random color.