This is a crunchy bird toy designed for chewing. Commonly known as: "Baribari Breaker" By combining wooden boards with walnut shells, we've created a structure that allows birds to enjoy the sensation of "tearing and cracking." Rather than breaking all at once, it's the type that is gradually conquered. Designed for parrots who enjoy focused play. [Hardness Guide] ★★★☆☆ (Hard) *This is a guideline assuming a typical cockatiel. Perception may vary depending on the individual bird. [Materials Used] ・Wood (Cypress) ・Walnut shells ・Logs (Apple branches) ・Stainless steel wire *All are unpainted and natural materials. *All metal fittings are stainless steel. [Precautions] ・Recommended for birds with strong chewing power. ・The way it breaks will vary depending on the individual bird. ・Please remove promptly when damaged. [Recommended for these birds] ・Birds with strong chewing power. ・Birds who are not satisfied with toys that break too easily. ・Birds who enjoy focused play. We hope your bird enjoys a fun and crunchy stress relief every day. Please feel free to ask any questions.