A sampler set of O rings for sizing for a Glans Ring. It consists of nine O rings ranging in size from 3/4 to 1-7/16. You want the fit to be Not Tight, and also Not Loose, just snug While you are Hard.
This set is awesome for helping you determine the proper size for a Glans Ring. This way you do not have to waste a lot of money on ordering something that will not fit you. Used properly and they can be a great savings to you.

You can save even further if you get our combo sizer which you can find here Combo Sizer Kit