Material: pig hair and steel White color Size: as the picture shows (1 inch = 2.54 cm, 1 cm = 0.3937 inch, 1 mm = 10 cm) Features A good helper for cleaning inside the surface of small jams, spouts, test tubes, refined oil bottles, glass cylinders and so on. Reusable and washable. With a small hoop that allows hanging. the stuff: 1. For cleaning small bottle tools such as: in the laboratory, refined oil, plastic bottles, etc. 2. For cleaning jar tools such as: glass, beaker, cream cans, etc. 3. Can clean without specification class bottles or tools etc Package included: 1x Test Tube Bottle Brush
