Made with balsa wood, it's very soft, and even small parakeets can easily chew on it. Our birds love it and play with it enthusiastically. Please give it a try! Made with love for parakeets, each one is carefully handmade. Using mainly natural materials, it's a toy that parakeets can enjoy chewing and destroying. Made to relieve boredom and stress while playing, and to protect the health of their mind and body. For safe playtime in their daily cage life. [About Shipping and Combined Shipping] Due to shipping costs, we only ship for purchases of 2 or more items from our store. For those who purchase 5 or more items together, we will include a small gift. When purchasing, please use the "bulk purchase" function.