Konohan Conical Centrifuge Tubes Sterile Plastic Test Tubes with Screw Caps Polypropylene Conical Container with Graduated Marks and Bottom(200 Pack,Blue Cap,15 ml)

it was perfect for my needs. disposable and so many i'll never run out

I use these tubes to collect spinal fluid while doing brain autopsies. These are perfect and priced affordably.

... not sterile.Not even a bag. The caps are not PP, some are missing and all of them are loose.I'll give 4 stars because i missed that detail... just everyone be aware.I won't be buying these again.

Fast shipping. Not sterile. Items are exactly as described.

I use these 50ml Centrifuge Tubes as part of a moisture system for the Isopods that I raise plus in my houseplants as part of an efficient watering system. I also use them to organize stones I use in my lapidary business. I have seen people use them with a rack to store and organize their seed beads, Jewelry Findings, Fishing Tackle, etc. A very versatile item that you will find a use for around your home.

The caps sealed to the tubes nicely, and the tubes fit perfectly in my micro centrifuge. Their capacity is small, however, so if you need full tube size, you should not choose these. The tubes are made of plastic, and come in a box about the size of a shoebox.Overall, they seem to do the job perfectly. Would recommend.

The tubes are described as "sterile" in the heading for the items, what they shipped was not sterile. I already have thousands of non-sterile tubes, I am trying to order sterile tubes.They basically lied to get us to buy more non-sterile tubes!

Yes one never trusts the measurements based on the ticks on a conical but the ticks are helpful for determining about how much liquid is dispensed. The ticks are off on these conicals by about 1 ml.