Using this Kaytee CritterTrail Starter Kit is easy. First, set up the habitat in a quiet area away from direct sunlight and drafts. Put the disposable bedding tray inside the habitat, then place the food dish and fill it with your pet's favorite Kaytee small animal food. Attach the top - mount water bottle securely and ensure it's filled with fresh water. Let your hamster, gerbil, or mouse get used to the new environment gradually. When it comes to maintenance, check the water bottle daily to make sure it has water. Replace the food in the dish every day to keep it fresh. Clean the habitat regularly by removing the disposable bedding tray and replacing it with a new one. You can also connect other CritterTrail habitats to give your pet more room to explore. Just make sure to follow the connection instructions carefully. When using the $10 mail - in rebate, keep the receipt and follow the instructions on the rebate form.