Dear dog lover - I'm seriously impressed! Especially the green light is very bright and protects our dogs before "Not-be-seen". We have already mentioned several times ("but they are bright" or "Oh, those are dogs; I thought aliens * lol *) and really have nothing to complain about.
The Leuchtie is rigid and can be attached with a clip to the collar or harness on (which you should also do, because the dog can lose the collar when sniffing).
Buy recommendation! Although not sooooo "cheap" - worth every penny !!!