Using this Living World Water Bottle and Feeder Combo is easy. First, find a suitable spot on your bird's vertical wire cage and use the plastic adapter clip to attach the feeder securely. You can fill it with either water or bird seeds, depending on your bird's needs. When it comes to refilling, just open the top and add more food or water as required. As for cleaning, since it's made of durable plastic, you can simply use warm soapy water and a brush to get rid of any dirt or debris. Rinse it thoroughly and let it dry before refilling. Note that the color of the product you receive will be chosen at random from the available options (Blue, Yellow, Purple, and Green). Also, make sure to check the feeder regularly to ensure it remains in good condition and that your bird has access to fresh food and water at all times.