Designed Specifically for GapsThis is a cleaning brush specially designed for door cracks, window cracks and small corners. It can clean door and window slides and gaps, etc., easy and effortless. MultifunctionThese brushes are small enough to get into the gaps of many hard-to-reach corners. They are perfect for removing grease and dirt from window grooves,blinds,air vents,sliding door, shower door tracks, computer ,keyboards,sinks,etc. Replaceable Brush HeadComfortable GripPP material handle, comfortable grip, fixed brush head design scouring pad material, good cleaning power, can clean door and window slides and gaps, etc., easy and effortless. Deep into Cracks & Fast Cleaning This door window track cleaning tools with thin brush head design makes it easier to clean any corners, gaps, baseboards, narrow space or cracks in your home. Comfortable HandleElevated ergonomic handle keeps your hand out of the way to prevent injury and gives you an unobstructed view. daily home cleaning, easy and effortless.