1,High quality Heavy duty acrylic boards molding in one no need to install compatible with you as it is ready made.Please measure your feeder door to insure that the Tidy Seed Bird Feeder will fit appropriately compatible with outside the bird cage use.2,THE BEST GIFTS compatible with BIRDS: This crystal-clear acrylic feeder is expressly designed compatible with birds .Available in a variety of sizes compatible with all birds.3,NO MESS: This feeder does away with scattered seeds and hulls. Some feeders have claimedno scatter - this one actually works. You bird enters and eats, leaving hulls and uneaten seed behind in the trough 4,ELIMINATES COSTLY WASTE: Youll save money on seed that didnt end up soiled on the floor.1. The separation of grain or seeds from the husks and bird shit prevent bird eating shit;2. The feeder could stock seeds compatible with around half a month or one month which depends on different birds.Portable hook, safe and durable thickened acrylic material, and antiskid bar to makes it not easy to fall.Product name: acrylic bird feederMaterial: acrylicColor: transparentS (Approx.): 13X11X13cm/5.12*4.33*5.12in, thickness: 3mm/0.12inS: suitable compatible with small and medium sized birds such as budgerigar, cuckoo parrots and yellow peach parrots.Package Contents:1* Bird FeederOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.