Set of 3 Pyrex 250ml Round Laboratory Leyden Flask| Pyrex Science Experimental Glass Flask With Stoppers | Scientific Laboratory Glass Flask

~ Discover authentic vintage science with this exceptional set of three Pyrex laboratory flasks, each marked 250ml and crafted for serious collectors and educators alike.

~ These classic round-bottomed vessels feature elegant long necks and sturdy flat bases, paired with original black rubber stoppers fitted with metal ball and spear mechanisms.

~ Standing 5½ inches tall with a 3-inch diameter, each flask showcases the quality engineering Pyrex is renowned for.

~ In excellent used vintage condition, these pieces carry the character and charm of mid-century laboratory equipment, perfect for display, educational purposes, or completing your scientific glassware collection.