Item Type: Tube Rack <br>Material: ABS <br>Purpose: Load test tube <br>Grid Size: Approx. 30x30mm / 1.2x1.2in <br>Number of holes: 21<br>1、Durable, made of sturdy plastic, light in weight, and very durable in use. <br>2、The capacity is large, the grid size is about 30x30mm, and it can hold 21 test tubes. <br>3、Easy to store, the test tube rack has 3 separate parts, which need to be assembled and take up little space. <br>4、Easy to disassemble and install, the three?layer design is convenient for the insertion and removal of the tube and is easy to carry. <br>5、Easy to clean, using ABS material, can be cleaned with water, very convenient for your use.1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding. <br>2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.<p>3 x Test Tube Rack Board</p><p>1 x Manual&nbsp;</p>