Polly's Cactus Towers are made from pieces of natural cholla cactus wood, separated by brightly coloured acrylic discs. This toy has been calcium enriched and is designed to satisfy a bird's natural instinct to chew. Destructible toys like these help to prevent boredom and feather plucking with caged birds. The Cactus Tower toy features a copper bell attached to the bottom which can be easily removed if desired.