Item Type: Bird Swing Toy Material: Apple Wood, Cuttlefish Bone Use: Bird Cuttlefish Bone Bite Swing Package List 1 x Bird Swing Toy Please allow 0‑2cm/0‑0.8in error in manual measurement. 1、Safe Material: Made of natural apple wood and cuttlefish bone, it is safe and non toxic. Cuttlefish bone can also help birds to replenish calcium. 2、Multifunctional Use: As a swing to provide a place for pets to play swing, play at the same time, can also bite cuttlefish bone supplement calcium, is very helpful to the health of birds. 3、More Interseting: Keep your pet busy playing, reduce your pet's feelings of destructiveness and anxiety, and allow your pet to have more fun. 4、Keep Healthy: Nibble on swing toys to prevent birds from nibbling on the cage, filling calcium to keep healthy while sharpening the beak to prevent birds from eating too long. 5、Easy Installation: Comes with fixed chain, can be directly suspended in the cage or other places can be suspended, easy to install and use.