Super is that they are made of plastic and so break with not so easy. (Are quite stable)
Unfortunately, in the description only the outer diameter of 16 mm. The tubes have run but as an inner diameter of 13 mm which also only about halfway these glasses conical. Thus, only in the upper third, the M & M's had space.
For the product there are 5 *****
For a description of only 2 **
