You have a number of options, choose to place 12 API glass tubes onto the tube stand, or 6 API glass tubes onto the tube stand, and another 6 tubes can be tilted onto the tube stand to allow the water to separate from the tube for a dry effect
The bottom is designed with grooves, which can stabilize the inserts such as test tubes or pens. clearly see the contents of the test tubes and easily insert and remove the test tubes
There are 6 bumps on the left side to dry the test tube. The tilted test tube is convenient for water to flow out. The tube stopper can also be dried above the test tube holder
You have a number of options, choose to place 12 API glass tubes onto the tube stand, or 6 API glass tubes onto the tube stand, and another 6 tubes can be tilted onto the tube stand to allow the water to separate from the tube for a dry effect