Glass measuring cylinders have the advantage over plastic ones in that they will not stain after using photographic chemicals. They also are heavier and therefore more stable than alternatives.
Our own version of these cylinders, Made in the UK, is constructed from scientific grade glass and comes in two versions. The 250ml cylinders have 10ml marker points with 2ml gradations while the 500ml version has 100ml maker points with 5ml gradations.
Each comes with a wide hexagonal base for stability.