I wanted these smallest round labels to put on my individual daily disposable contact lenses cases (each lens in its own case and the Left and Right look almost the same except for some technical labeling about the prescription. So I want labels with L or R on them. Personally I think the opticians are missing a trick but hey, its easy as pie with these labels and the free download template. The labels came quickly and the template was almost perfect but with the instructions that came with it it was very easy to make a minor adjustment. they seem to stick fine. Very good AAAAAAAA++