Using these Kong Wild Knots dog toys is easy. Just give them to your dog and watch as they have a great time chewing and playing. Remember, these toys are for dogs only, so keep them away from other pets or small children. When it comes to maintenance, you can wash them in a gentle cycle with mild detergent to keep them clean. Check the toys regularly for any signs of wear and tear. If you notice any damage, it's best to replace the toy to avoid any choking hazards.