ITEM NAME:7.1" Long Nylon Bristle Stainless Steel Handle Test Tube Cleaning Brush A7P9 7.1" Long Nylon Bristle Stainless Steel Handle Test Tube Cleaning Brush A7P9 Product Name : Test Tube Brush;Material : Nylon, Stainless Steel Brush Size : 8 x 1.5cm/ 3.1" x 0.6" (L*Max.D);Handle Size : 10 x 0.9cm/ 3.9" x 0.3" (L*D) Total Length : 18cm/ 7.1" Weight : 6g Not just for test tubes, the nylon bristles are great for cleaning all sorts of surfaces. It's also very flexible, you can bend it around for hard to reach places. Package: 1 x cleaning brush Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.