We chose because of the good Rezesionen for the collar. We are thrilled that our cat really does not bring ticks and fleas home. The reflective coating comes off little by little, but keeps the 3-4 months by then the collar should be changed anyway. The collar could be a bit more flexible in my opinion. But it feels not as disturbing our cat. Somewhere you just have to make concessions. In winter, we pause, because our cat has only a reflective elastic collar. In the spring, we draw back to Beaphar.