!!!NEED TO KNOW BEFORE YOUR PURCHASE!!! --- The FOOD DISPENSER needs the cage vertical wire spacing larger than 1.1 inch (2.7cm) AND horizontal wire spacing larger than 1.6 inch (4cm).The WATER DISPENSER needs the cage horizontal OR vertical wire spacing larger than 1 inch (2.5cm). LARGE CAPACITY --- The food feeder is 1L/34oz, can hold pet food 500g,and the water bottle is 500ml/17oz large capacity, no longer need to worry about your pet has not enough food to eat if you are not home all day. Great for Rat, Hamster,Guinea Pig, Ferrets, Bunny , Bird, Cat and Other Small Pets. EASY TO REFILL --- This small animal feed box has a lid. The lid can be easily opened for refilling or changing feed. You can attach this hanging pet feeder to the outside or inside of the cage according to your own needs. EASY CAGE ATTACHMENT --- This feeder is simple to install and attach. Independent hooks allow the feeder to be attached to the inside of the hutch, or for a more convenient filling to the outside. AUTOMATIC SUPPLY FEEDER --- Natural gravity supply system, no electricity required, environmental protection. The slope design with two outlets to ensure that no food stuck. FOOD AND WATER FEEDER SET --- Package included 1pcs food dispenser and 1pcs water feeder, both can easily hang in the cage.