Using this dog collar is easy. First, measure your dog's neck and add 2' to get the right size. Put the collar around your dog's neck and fasten the solid brass buckle at the appropriate hole. Make sure it's not too tight or too loose. When cleaning, use a soft, damp cloth to gently wipe the leather. Avoid getting it too wet as it's leather. Store it in a dry place when not in use. Check the buckle and dee regularly to ensure they are in good condition.