2 mL Microcentrifuge Tubes, Flip Cap Polypropylene Lab Centrifuge Tube with Snap-Cap [2mL, 1000 Pieces]

I bought these for long-term storage of mycelium cultures on agar suspended in water. I filled them 1/2 full with water, and they withstood the pressure cooker @15 PSI for 20 minutes just fine. I’d buy them again if I ever need more. I would have preferred orange caps over blue so that sharpie writing would be more visible, but it’s not a flaw of the product.

Use them to hold charge for my 50 cal muzzleloader. Works great

Perfect containers.Fast shipping.No issues!

wrong size shiped, but works well.

Very much good

Works as expected for general lab use. Seals well, can be used to store frozen reagents. Good value.

The caps on these fit better than most of the previous vials I have used in the lab.

These are good, inexpensive 2 mL microfuge tubes. They close tightly enough but not as tightly as other tubes I've used, so the seal/lock might not be as durable as on other tubes. Based on the given temperature resistance (up to 121C) they might not withstand autoclaving very well, so I be wary about using them at a higher temperature and I don't know if I'd use these for microbial work as they're not advertised as sterile. But they'd probably be fine for small-volume non-sterile buffer storage. Thanks!