Glad you like it.
Unfortunately, there is no standardized print for "commercial" size tubes, they're aren't as consistent in size as mil-spec. We can do stocks that fit the majority of tubes well, but there will always be some at opposite ends of the spectrum that don't. We have seen tube sizes change over time from the same vendors. So I should say, they are commercial size, and will fit the most tubes out there, but there are some tubes that either won't fit or will require some fitting to work.
If you do have any issues with our stocks fitting on a particular tube, contact us and we will try to resolve it.