?Crevice Cleaning Brush Material? Hard-Bristled Cevice Cleaning Brush Is Ultra-Fine Pet Bristles That Are Much Harder Than A Toothbrush, The Gap Brush Can Deep Into Cracks As Well | | ?Gap Cleaning Brush?They Have A Long And Thin Handle, So These Grout Cleaning Brushes With Long Handle Can Easily Fit Into Small Gaps. These Brushes Are Very Useful In Cleaning The Window Tracks, Keyboard Keys, And Other Hard-To-Reach Crevices Where Dust Normally Accumulates. | | ?Multiple Uses?Whether It Is The Gap Around The Kitchen Sink, Bathroom B, Oven And Turntables, Sliding Door Rails, Window Frames Or Toilet Seat, The Crevice Cleaning Tool Can Solve It, And It Is A Good Assistant For Family Life. | | ?Ergonomic Design? Grout Cleaning Brush Features Durable Bristles And Ergonomic Handle Design Providing Comfortable And Extra Powerful Grip While Scrubbing. The Hanging Hole In Long Thin Cleaning Brush Is Useful And Takes Little Space In To Store. | | ?Quality Assurance?Crevice Cleanin.