Using the KONG Rewards Tennis dog toy is easy. First, open the easy - fill funnel and add your dog's favorite kibble or treats. Then, let your dog play with the toy. As it rolls around, it will dispense the treats. This not only provides entertainment but also helps with your dog's weight management if you use it as a food bowl replacement. Always supervise your dog when they're playing with this toy. Remember, it's not a chew toy. Once the treats are all gone, take the toy away. If you notice any damage, stop using the toy immediately. To keep it in good condition, you can wash it with mild soap and water after each use.