Descriptions:Great for cleaning and rust removal inside of objects such as pipes.Not just for test tubes, the bristles are great for cleaning all sorts of surfaces.It is very flexible. You can bend it around for hard to touch places. A ring at the end of the handle for hanging. Specification:Product Name: Test Tube BrushBristle Material: Synthetic BristleHandle Material: MetalColor: Brown, Silver ToneBristle Dia: 0.14mm / 0.01inchBrush Size: 110 x 20mm / 4.3 x 0.79inch (L*D)Total Length: 300mm / 11.8inch Package Content:2 x Test Tube Brush.
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