Bird Swing - Size S Play, Swing, and Relax! This is a bird swing made by attaching T-shirt yarn to a plastic ring. The T-shirt yarn is safe because it won't catch on your bird's claws. [Materials Used] ・T-shirt yarn ・Plastic ring ・Wood ※ Each one is carefully handmade. ※ The fourth photo is an example of use. [Size] Approx: Diameter (Outer) 14 cm Diameter (Inner) 11 cm (width) Width 1 cm