" Gravity Bin Feeders hold up to two pounds of food giving your pets a five day food supply! Gravity Bin Feeders exclusive Snap-Lock bracket system attaches directly to any wire cage. Sold separately, Super Pet's Suction-Cups (Item #61942) can be inserted into the Snap-Lock bracket allowing you to secure a Gravity Bin Feeder inside a glass enclosure. Gravity Bin Feeders feature an unique, sifter floor design that eliminates pellet dust which helps prevent respiratory problems in small animals. Available in white to match white wire homes."