test tube brush used to clean the inside of a test tube or graduated cylinder.
The material of this test tube brush is nylon. fantastic for cleaning test tubes in a lab or classroom context.
A test tube is a typical piece of laboratory glassware that is open at the top and closed at the bottom. It is also referred to as a culture tube or sample tube. Ordinarily, test tubes are arranged in dedicated racks.
A graduated cylinder—also referred to as a measuring cylinder, a mixing cylinder, or just a cylinder—is a typical piece of lab equipment used to measure the volume of a liquid. It's cylindrical in shape and is narrow. The measured amount of liquid is shown by each marked line on the graduated cylinder.
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