uxcell 10 Pcs 10mm Dia Chemistry Test Tube Bottle Nylon Washing Brush Tool White Product Name : Test Tube Brush;Material : Nylon, Stainless Steel Color : White, Silver Tone;Brush Size : 8 x 1cm / 3.1" x 0.4" (L*D) Total Length : 16.5cm/ 6.5" Net Weight : 32g Package Content : 10 x Test Tube Brush