5ml Plastic Test Tubes Screw Caps Small Bottle Vial Storage Vial Storage Container for Lab-50pcs

great vials ideally for fountain pen ink samples - have used these for ink to give to friends etc. they have markings for millilitres on the side and also textured strip for labelling. inks have never leaked either

Useful and functional.

Well produced sturdy ideal small storage

I bought these to share some of my ink collection with a friend. I was surprised at how small they are and the fact that the lid pushes on rather than screws on. However, I did a leak test (filled it with coloured water and left it in its side and upside down for a few hours) to see if it leaked - no leaks. Now it's en route across the pond, so if there is an update, I'll update! Otherwise, it did the job for me. Brucie bonus: you can insert a pen (or converter) in it to refill (5ml - a good few refills!) so it can act as a travel ink well but put it in a plastic bag just incase.

I loved the size of these sample bottles, and the fact that their were so many of them. Unfortunately unlike other reviewers my bottles did leak. Ididntlike the push on lid and the plastic wasn't very sturdy. I will not be using these to store any liquids. Also some of the bottles didn't sit straight due to the fact that the bottom of the bottles hadn't behind smoothed and bits of plastic were left on them.

Good value

Going by the images I thought these were screw cap! I got them to take hair oil on a three day trip... No good as would leak!

Volume markers are accurate enough. Lid forms a good seal. Textured area accepts indelible ink from a marker well

Très bien

Y eso era lo más importante, para evitar catástrofes, puesto que su contenido no es otro que tinta, muestras de tinta que intercambiamos las locas de las tintas, y de momento, estupendamente. Así que fenomenal, mari. Nuestros bolsos parecen estar a salvo. P.D. Tras su uso intensivo he detectado que, una vez llevada la rosca hasta el final en el sentido del cierre, hay que ejercer una ligera presión para que el tapón baje completamente. Y ahí queda tope guay todo bien alineado. Hermetismo a saco.