Material: Acrylic(PMMA). It can be used to place the test tube in an orderly manner in the laboratory, so as to save a lot of space, and can be used as a carrier to better move the test tube.
Construction is durable and chemical resistant.
Versatile design accommodates different tube sizes on two sides.
The 2 kind of holds the following tubes: 48 – 1.5ml, 2ml tubes(Well Dia: 11mm);48 – 0.2ml tubes(Well Dia: 5.3mm).
Please check the diameter and height of your tubes before you buy. The diameter should be less than 11mm and the height should be higher than 25mm.