Prevue Shreddable Shack Bird ToyPrevue Shreddable Shack satisfies natural nest building urges while providing great beak exercise. 100% natural, dehydrated, sterilized coconut fibers to satisfy plucking, preening, nesting and foraging instincts. Tropical Teasers bird toys may include additional materials, such as rope and hardwood shapes for beak and tongue exercise. Toy connects easily to cage with quick-link attachment and can be replenished with fibers to extend the life of your toy. Toy is hand made and actual measurements may vary slightly