I had the single pair of earplugs ordered to for short trips always with you to have it. In the product description, the size is not specified; the part is at least 7 cm high and has a maximum diameter of 2.4 cm. Is ok and still less than a 5-pair box of earplugs. My old packaging that I have lost after a few years was significantly smaller (difficult to compare, since completely different form). From diameter and 1.5 cm would be enough, the length would be adequate with 4 cm. Better is taking things a package in which the earplugs are adjacent.
The earplugs itself naturally function properly, but if it's all about, you will find the cheaper or equal to a multiple-pack, since they wear out quickly. There are, incidentally, two differently colored and "patterned" Orhopax in it, which should be as comfortable with the color earplugs.
In short, the earplugs are packaged clean and do not collect dirt or crumbs / lint in daily transportation.
