HomeDoReMi Keyboard Cleaner (4PCS) - Remove Dust, Hair, Crumbs from Keyboard, Keypad, Air Vent - Rid Your Electronics of Germs - Best Keyboard Instrument Cleaning Care Product, Effective and Efficient NOTE: FiveJoy is the owner of the brand HomeDoReMi. FiveJoy does not authorize any third parties to sell HomeDoReMi products. To ensure an AUTHENTIC HomeDoReMi product, please buy from FiveJoy only. Remove dust, hair and crumb from cracks and crevices on electronic and mechanical devices and appliances without leaving behind residue. HOME, OFFICE, EVERYDAY USE- Great for computer or laptop keyboard, phone key pad, TV remote, video game console, xbox/ ps4/ wii controller, speakers, fan grill, air condition vent, car air vent, dashboard, window sill and more. Non-toxic and biodegradable. Very effective in removing 99.99% of harmful particles that live on everyday surfaces. Comes in an air-tight, resalable ZIP bag for safe and convenient storage - Can be used over and over again till compound turns nontransparent. EASY TO USE: (1) Dry your hands before use. (2) Take clean gel out, pinch it to the desired shape. (3) Lay the gel on the surface to be cleaned, press it down for 2 or 3 times and lift it up. (4) Fold the gel in half and start fresh with a clean side. (5) Store in bag.