Just what I needed. Ive been using the small plastic ones for years but they are constantly needed replacing. With 4 teenage children all with growing hands this is brilliant. Ive have checked a few rings I know the size off and the pole seems very accurate. And the ring loops feel very strong, no bend in them at all.
Lastly the little plastic loops for resizing rings are brilliant ive never seen these before but they are really usefull.