Review on Bio Plas Assorted Polypropylene Microcentrifuge by Lonnie Batch

I bought these racks from Revain because they were cheaper than what I could get from lab supply suppliers for my lab. The racks are robust and suitable for 1.5 ml and 2 ml microcentrifuge tubes. The tubes fit in with some wiggle room, which is how I like it. If you are looking for a snug fit, this frame will not fit. The 1mL Nalgene cryotube does not fit completely, but its bottom does. So you can also use this rack to store cryovials, although the vials stick out. As other reviewers point out, it wasn't possible to install the 0.5mL tubes (they are usually on the other side of the rack). I knew about this when I bought these shelves. The price of money. I haven't tried autoclaving them.