These tubes are of equivalent quality and specs as the big name brands, at a fraction of the cost. I ordered these as I needed non-Styrofoam racks. The racks are sturdy and hold the tubes well. Product is well sealed
I loved this tube for 2 reasons.
1. The seal is super tight- good for transferring
2. The blank label on the side, I use a black sharpie & keep track of each liquid tube.
Ivy Owens 
