Using this leash is super easy. First, hold the leash in one hand and use your thumb to open the E - Z Snap with the other hand. Then, quickly clip it onto your dog's collar or harness. When you're walking your dog, keep a firm grip on the leash to ensure your dog's safety. Don't let your dog pull too hard on the leash as it might cause the snap to open unexpectedly. As for maintenance, after each use, give the leash a quick wipe down to remove any dirt or debris. If it gets really dirty, you can hand - wash it with mild soap and water. Just make sure to let it dry completely before using it again.