Test Tube Brushes 10-Pack

Sets of 10 tube brushes Size S: 20 mm diameter, 85 mm bristle length, and 180 mm total length; Size M: 30 mm diameter, 110 mm bristle length, and 235 mm total length; Size L: 36 mm diameter, 130 mm bristle length, and 270 mm total length These brushes are flexible, allowing for the gentle removal of stains and dirt from labware without causing any scratches; they also come with a small ring at the handle's end, making storage convenient Suitable for cleaning tubes, bottles, cylinders, pipes, glass barrels, and versatile applications in chemistry, biology, laboratories, kitchens, industries, and more