Cool little glass vials or ampules. Approx. 12 mm across at widest area & 75 mm tall, mouth has 5 mm opening. Old stock so could use some cleaning. I washed these before photographing them but didn't have the patience to wait till they dried completely which is why they look a little spotty. There are two lines printed on the neck, white & green & a third cut line right where the shoulder of the wide bit starts. My guess is this is a snap line - where one could break off the neck & cork it if one wanted. To prevent it from snapping I'd suggest wrapping that areas with fabric, thread, or tape than solder etc. Not sure what these where meant for but definitely an interesting addition to an assemblage of some sort. Sold per piece.