Parrot claw tree branch stick natural material: made of pure natural wood, without pungent chemical odors, allowing your bird to stand comfortably without slipping. The parrot claw tree branch stick is easy to install: each bird rack comes with a metal butterfly nut and built-in bolt. Simply fix the wooden branches to the cage with screws. Recommended small animals for parrot claw grinding stick: suitable for canary, budgerigar, phoenix bird, parakeet and other small animals