Well I ordered JIFFY Bands from National Tag and instead Zip Bands showed up. I figured what the heck I would give them a try as I waited three weeks for them to show up. These are the ones that you have to manually pierce through the wing and then press the rivet closed with the special plier. I was able to get them on my 6 month old birds but my older stags, just forget about it. After bending about ten of them trying to get them through and almost throwing the pliers through the window I gave up. I would absolutely not recommend these or the tab ends if you have to band older birds. I also don't like the way they stick out past the feathers and are very visible. Now I have to wait another three weeks for the Jiffy Bands.