Insulated testtube holder which can hold testtubes of several sizes. Slots are provided for four numbers of 20mm diameter tubes, four numbers of 16mm diameter & four numbers of 13mm diameter. All of which can be 150mm in length at max.

This is printed with PLA on delta-bot printer in three parts and the outer layer's insulation is taken care with great stuff (foam). The lid is also insulated and fits perfect on top the whole body.