Colorimetric tube rack holds many colorimetric tubes upright at once for safe storage, organization, and transport 

* High Quality: This colorimetric tube rack is made of organic glass, which is very durable, smooth surface, having long service life, and easy to clean. 

* Easy to Use: This colorimetric tube holder is very convenient in daily life or when doing experiments. You can put your colorimetric tube in the hole of the colorimetric tube holder, neat and orderly. 

* Isolate colorimetric tube: There is usually a certain distance between. The slots of the colorimetric tube rack to prevent mutual interference or cross contamination between colorimetric tube. 

* A Good Helper in Laboratory: Very suitable for the laboratory, providing a clear view of the contents of the colorimetric tube and making it easy to insert and remove the colorimetric tube.