BIPEE Plastic Test Tube Rack for 30mm Tube, 21 Well, White,Detachable (21 Hole)

These are great for my single dose coffee vials. I way them out in bulk and use the rack to hold them in the freezer. Before I bought this they were just rolling around on the freezer shelf. Now they are organized and take up less room!! They are cheap and easy to pop together and clean. Seems like they will last a long time too

...allerdings kosten die wesentlich mehr.Das Rack ist in sich etwas instabil und die Verbindungen halten nicht so gut. Besser sind die Racks aus einem Guss.

I needed an extra rack to hold tubes for milkweed cuttings that I collected for the monarch caterpillars I was raising. This rack fit the 60ML tubes that I had on hand great. Makes it so much easier to feed the caterpillars. I clicked it together fine on the first try. It has not come apart.

I bought my first one to use for draining/drying components of my milking machine. It does a fine job. I did order 2 more to use for actual test tube racks, but my tubes are a bit smaller (20 ml) and they tend to lean over to one side. Easy to put together and fairly sturdy.

I really like these racks. Once you put them together they are very sturdy. I have other racks of similar design that are more flimsy, but these are quite firm and strong. The holes in the rack fit a 50ml tube well, but with enough room for the tube to easily be pulled out of the rack with no sticking.