What is this?These brushes are great for all the small nooks and crannies that you need to clean! Great for keyboard, electric shaver, window track, vent outlet, home, office, etc. The small narrow brushes help clean the coffee grind around the machine.What will I get?The 3 different brushes we provide here are in the length of 110mm/ 110mm / 84mm, and bristles length is 20mm / 16mm / 16mm.The package includes 4 x 110mm Round Handle Brushes, 4 x 110mm Brushes, 4 x 84mm Brushes.Are there any advantages of the product?The handle is made of plastic, comes with a nylon bristle. It can get into hard to clean places like under knobs, faucets.How to use it?They are tiny and easy to use. They can get into tight spaces that a larger brush cannot.What should  I notice?We recommend you gather the dust together and then use a dust collector to suck the dust away.