Using this dog collar is a breeze. First, measure your dog's neck accurately and follow the sizing guide to pick the right collar size. Then, fasten the solid brass buckle around your dog's neck. Make sure it's not too tight or too loose, and it sits comfortably at the middle hole for the best fit. When it comes to maintenance, keep the collar away from excessive moisture. If it gets dirty, you can gently wipe it with a damp cloth. Avoid using harsh chemicals as they might damage the leather. Check the buckle and dee regularly to ensure they're in good working condition. With proper care, this collar will last a long time and keep your furry friend looking stylish.