★Aomori Hiba wood and cork! The stainless steel wire is doubled for durability, and twisted tightly so it won't spin around. It's stable! When hanging, please adjust it slightly yourself. For safety, the top part is wrapped with hemp twine and secured with a zip tie. The bottom is designed for playing by pulling. Paper yarn seems to be a recent favorite, so I used paper yarn! It's intentionally cut roughly to make it easier to rub against with the beak. (σ゜Д゜)σ This will help grind down long beaks! Length: Approximately 18cm-20cm Width: Approximately 4cm-5cm