15 ml Conical Centrifuge Tube with Conical Bottom, Leakproof Screw Caps, Sterile, up to 12000xg, Polypropylene (PP) (Pack of 50)

Sterile, so it is less work when freezing beer yeast cake diluted with glycerine (25%)+water(75%)

Exactly as advertised. Clear markings for volume. Good sized field for labeling. Easy to use and good air tight seal. Would recommend purchasing a stand if using in mass quantities as they like to roll around.

I purchased these tubes for my medical practice. They fit well in my centrifuge, and being made of plastic, none were cracked or damaged during shipping. This is my second purchase.

Some of the tubes have the printed measurements completely smeared and unable to read. Some of the caps don't actually even fit properly onto the tubes. The price for the amount of them makes it easier to overlook some of the issues that I've had so far, but if you want something that's of the highest quality and don't mind spending a bit more, I'd consider looking at some other options.

Perfect for what I needed!

shipped fast. as described

Quality product

Getting ready to make my second order!