Features: [Easy to Use]This feeder can be fixed on external or internal of the cage, it attaches easily to the cage, eliminates seed scatter, and eases cleanup. [Hanging Hook]Hooks design provides a secure and stronghold to your birdcage to stay in place even in extreme weather. [Partially Closed Design]Partially closed bird food box with side opening can prevent leakage and splash, special design for easy to add food. [Comfortable Perch]Hanging bird feeder with comfortable and practical perch for birds to rest. [Time-Saving]Bird will love to stand on the perch and feed; the excess seed falls into the catcher holder below. It will save you lots of time cleaning up.