This rabbit and small animal feeder comes with independent wire hooks so it can be attached to the inside of the hutch, or for more convenient filling to the outside with some wire cutting. Gravity design allows feeder to dispense several days worth of feed a little at a time. Features hinged metal lid for covering the feed. Made of chew-proof, rust-resistant, heavy-gauge galvanized steel.3″Measures 5.5 inch long by 3.125 inch wide by 7.125 inch high.5″Measures 5.5 inch long by 5.125 inch wide by 7.125 inch high.7″ Measures 5.5 inch long by 7.125 inch wide by 7.125 inch high.