I made a post on another thread and mentioned these. Has anyone used them? I have heard good things about them. That they work well and are easy and fast to apply. I ordered a few to try. The Callicrate bander works well but sometimes it is hard to get both nuts in the loop and it tightened before one slips out. I always make sure I have 2 but have had to remove a band and install a new one. If these work they should be easier and faster to apply. They say they can be used on bulls from 280-800 lbs.