Using this dog collar is easy. First, measure your dog's neck accurately and add 2 inches to find the right size. Put the collar around your dog's neck and fasten it through the middle hole for a perfect fit. When it comes to maintenance, you can use a soft, damp cloth to wipe the collar clean every now and then. Keep it away from sharp objects to avoid scratches on the leather. If the collar gets wet, dry it naturally away from direct heat. Always check the buckle and dee regularly to make sure they are in good working condition. This collar is designed for comfort, so your dog can wear it all day without any irritation.