This crack cleaning brush set removes dust, dirt and debris from small cracks and tight spaces. The ultra-fine PET bristles are flexible, allowing them to reach tight spaces, cracks and corners without scratching or damaging the surfaces being cleaned. The back of the brush carries a cleaning clip, you can take it out from the back of the brush handle when you use it, and you can put it into the back when you don't need to use it, and it won't take up any space at all. These hard bristle cleaning brushes are built to last. They are wear-resistant, allowing you to use them for a long time without worrying that the bristles will lose their effectiveness, even after multiple uses and washes. This gap cleaning brush can be rinsed with water and left to air dry. It is compact and can be stored in drawers, toolboxes or cleaning carts; it also has a small hole for hanging, saving space. These gap cleaning brushes can be used on different surfaces. Whether you need to clean your car dashboard, keyboard, air vents, kitchen appliances, bathroom fixtures, tiles, shower door tracks, sink drains, oven, turntables, sliding door tracks or window frames at home or in the office, this set is for you.