The trailer securely packed a small note with address and telephone number. This really is not a problem to write any important data on a piece of paper, which then fits into the trailer. The trailer is of size a little longer than the usual bells that always hang on the collars off. I do not feel that disturbs my cat on the trailer. Practically, the ring, with which you can either attach the collar to the trailer by the collar itself or on a plastic piece or the like. A pity, I find that you can not choose the color. It remains a surprise which is supplied. In my hangover I had the necklace with a trailer to remove because he got a strong eruption. Whether he allergic to the trailer or the rash has a different cause, I can not judge.
Conclusion: Small, functional holds, safely and securely, easy to attach! :)
