Attribute Value Color Blue Soft gum material Car Vent Cleaner is flexible, easy to deform and stretches freely, so that it can gets into the uneven parts and fine parts of various equipment to removes dust with strong adhesive power. Made of biodegradable gel, not sticky to hand, smells sweet with lemon fragrance, totally no stimulation to skin. Please Do not Use Water/Detergent for Cleaning Gel. Press it on and the dust is gone. Its cleaning effect is very good. It feels good to touch, and it can be used smoothly without sticking to things after hand. When you use auto cleaning putty, you just remove the foil, take it out and press it for about 3-5 seconds. This cleaning gel could be used for several times till the colour turn to dark. When cleaning finished, just put the box at cool place Note: Please store it in a cold place. Picks up dust and dirt from computer keyboards, mobile phones, printers and Musical Instrument. Does not leave residues, keeps your hands clean, has a proven disinfecting action.