The KIMAX 1000ml Glass Flask with Pyrex glass stopper is a high-quality Erlenmeyer flask designed for use in biological laboratories. Made of durable borosilicate glass, this flask has a volume of 1000 ml and comes with a glass stopper for easy storage and transportation. With the trusted Kimble brand and model number 32 which is the standard taper joint size of the stopper, this flask is a reliable and essential piece of lab equipment for various scientific experiments and research studies. This has no graduations.  There is a tiny chip on the outside of the lip.  Otherwise in excellent used condition.  Thank you for shopping with me.