Product Name : Test Tube Brush;Material : Nylon, Metal
Total Length : 36cm/ 10.2""
Net Weight : 25g
Color :Beige, Silver Tone ;Brush Size : 11x 3cm/ 4.3"" x 1.2"" (L*Max.D)
Package Content : 2pcs x Test Tube Brush
Not just for test tubes, the nylon bristles are great for cleaning all sorts of surfaces. It is also very flexible, you can bend it around for hard to reach places.
uxcell Laboratory Set Test Brush Tube Bottle Cup Cleaning Tool 2pcs - B01MXJV9DH