Using this dog collar is easy. First, measure your dog's neck and add 2' to pick the right size. Then fasten the collar around your dog's neck, making sure it's not too tight or too loose. You can use the blank on the collar to add a name plate with your dog's info. When it comes to maintenance, wipe the collar with a damp cloth regularly to keep it clean. Avoid getting it too wet or leaving it in direct sunlight for long periods, as this can damage the leather. If the collar gets dirty, you can use a mild leather cleaner, but always test it on a small, hidden area first.