ErgoTubes are the latest product release from BioCision (the CoolRack company). These are easier to use than conventional “flip” top microcentrifuge tubes. So, they will help with your sore thumbs! Secondly, because your thumb does not pass over the top of the tube during opening, there is reduced risk of contaminating your sample.
These products work optimally with precision engineered products like the BioCision CoolRacks.