This brush can not only be used to clean test tubes. The test tube cleaner is also ideal for tubes, hoses and drains. The brush is made of hard-wearing pig bristles and has a wool head at the front. Thanks to the soft wool head, the brush is ideal for sensitive materials. The combination of pig bristles and wool also ensures optimum dirt pick-up. The brush is twisted with galvanized steel wire. Thanks to the galvanizing, the wire is protected against corrosion.