I do not recommend the lobster clasp. I got it to be able to move my dogs tag from collar to collar. Somehow when my dog was playing it got caught on something, he freaked out not understanding, and broke it in half. Would definitely go with one of the sturdier clasps. Not the sellers fault what so ever. This is manufacturing and the general wear/use of the product. We will just be ordering a different clasp from now on.