Test tubes rack for your chemistry set. Now for different sizes of test tubes.
laboratory test tubes
- 29x 13mm x 100mm
- 29x 16mm x 160mm
vanilla bean glas tubes
- 14x 15mm x 160mm
- 14x 15mm x 160mm screw edition
I'd really like to add this to category "Chemistry" but thingyverse does not react to my request as there is no such category right now. ;-(