5mL Centrifuge Tube w/Safe Lock Snap Cap [300/Pack] 5 mL microcentrifuge Tubes with Safety Lock, Flip Cap, Clear Tubes with Graduation, Polypropylene, Plastic Lab Snap Tubes

This is a great product for my lotion and all samples I will continue to buy this particular product

Good quality

For my purposes, height and width were important, not just millimeters so here are measurements in case it is that way for you too.These work well and are a nice price compared to others.

No down side. They're sturdy and close tight.

El producto llegó a tiempo y exactamente lo que se había ordenado.

Works very well.

Not much to mention about these as they work perfectly well.Strong body. Cap locks securely. Cap hinge is good. No badly formed molds. Easily marks for labelling. No odor.What I loved is how relatively clear the round bottom is. I have older conical bottom microcentrifuge tubes that are not as clear. With these tubes I can clearly see the sediment or pellet from spun down material.Great tubes for their intended purpose. Great for containing small items as well like small screws, precious stones, beads, glitter, etc.

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!