Amazing shipping and delivery. The collar is amazing Quality would recommend for any size dog that pose. I have he staffy that is eight months old that likes to pull a lot because he’s a puppy male that isn’t neutered but as soon as I put on the collar he instantly stopped pulling in knew exactly whos boss. I got the 2.25mm because he has short course hair with 4 added links and it fits perfectly behind his ears. I also after receiving the product ordered another additional 4 for when he gets older. And it already has been shipped out! 21/10 ! Would recommend to family and friends! Would addy pictures but unfortunately it doesn’t seem you can ! Thanks so much!