1PCS Lab Stainless Steel Test Tube Holder Colorimetric Tube Rack Centrifuge Tube Stander for School Experiment

1PCS Lab Stainless Steel Test Tube Holder colorimetric tube rack centrifuge tube Stander for school experiment

Item: test tube rack
Material: stainless steel
Qty: 1piece
Usage: an experimental instrument for placing test tubes, centrifuges, or colorimetric tubes.
Note: the products are empty rack, not include any tubes.