Fidvdo อุปกรณ์แปรงทําความสะอาดหลอดทดลองสําหรับแล็บ 5 ชิ้น

Material: Pig Hair & Steel Color:White,Red,Black Size:As the picture show （1 inch = 2.54cm，1 cm = 0.3937 inch,1mm=10cm） Features A good assistant to clean inside surface of small bottlenecks ,spouts, test tubes, refined oil bottles, glass cylinders and so on. Reusable and washable. With a small hoop allows to hang. Purpose: 1. To clean the small bottle tools such as: in vitro, refined oil, plastic bottles, etc 2. To clean the jar tools such as: glass, beaker, cream cans, etc 3. Can clean without specification class bottles or tools etc Package included:5x Test Tube Bottle Brush