100ml Round Bottom Graduated Centrifuge Tube with Screw Cap, Pack of 10

Work great for carrying protein powder in my work bag!

Perfect condition

These tubes arrived in a clear ziplock bag and weather labeled sterile or not, they're not sterile in this condition.I autoclaved them at 126c in sterilization pouches and they survived it perfectly and worked in the centrifuge at 4000rpm just fine without showing any signs of stress or leakage.I will try autoclaving them to 131c and will post an update to this then.

Perfect for my use except for the fact that they leak. The threads arent even cut to seal correctly so definitely not great for liquids

"You get what you pays for" Overall these are good, large volume, centrifuge tubes. Of the four I used, two caps leaked at 4500 rpm, no matter how tightly I screwed them on. That means the one can use only 40mL capacity, instead of the 90 - 100 possible.

These leak. Filled them up with 2 stroke oil and flipped them upside dow, and after a minute theres a small puddle of oil underneath the container. I bought other ones that were 50ml from a different company and those do not leak.

The lids on these tubes do not seal. Some leak very bad. I returned them.

Even if the lid is completely closed, the contents will leak.

Funcional, cumple su objetivo. Las tapas no sellan bien y si los agitas se derrama líquido pero para mis objetivos eso no es un problema. Hasta elemto aguantan centrifuga hasta 10,000rpm.