Bird Swing - S Size Play, Swing, and Relax This is a bird swing made by weaving T-shirt yarn onto a plastic ring. The T-shirt yarn is safe for birds as their claws won't get caught. 【Materials】 ・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