This product is designed to fit on almost any surface, wire cage, shed, wall, tree and fence post. It can also save your feed bill by up to 40%. The design allows easy access to the lid of the feeder without disturbing caged birds and is ideal for certain types of game birds and poultry. It has a rain shield to protect the feed and is easy to maintain and clean. It will take nearly all types of feed and prevents 'scratching out' by birds. Dimensions are 300mm x 140mm x 430mm.