Using this Nylabone Power Chew Lobster Dog Toy is super easy. Just give it to your dog and let them enjoy the chewing. It's great for training and rewarding, so you can use it during obedience sessions. When it comes to size, pick the Small/Regular for dogs up to 25 lbs and the X - Large/Souper for dogs 50+ lbs. Make sure to monitor your dog while they chew, especially if they're aggressive chewers. This helps prevent any accidental swallowing of large pieces. To keep the toy in good condition, you can wash it with mild soap and water from time to time. If you notice any significant damage, it's best to replace the toy to keep your dog safe.