Nice Package:The package includes a green rope ring of a diameter of 18.5cm.They are very suitable for all small or medium-sized birds, such as parrots, parakeets, cockatiel,mini macaws, etc. Durable Material:The bird swing adopts high-quality metal inside, with high-grade durable cotton rope twined outside .100% cotton rope + metal parts,thickened rope ring is more durable.Quite good bird parrot perches for Cage BEST TOY:The birds can swing or climb up on the round cotton rope swing, and can also jump back and forth between two swings to help develop birds' coordination skills and balance. Just like around in the tree, they will find it very interesting Easy To Install:This cotton rope swing has a hookhang the cotton rope swing on the cage, which is very convenient and provides a comfortable environment for birds to rest and play After Sales Service:If you are not satisfied with the product,please don't hesitate to contact us and we will do our best to solve your problem.Your satisfaction is our priority Material: cotton rope + metal accessories Diameter: 18.5cm Package include: 1 x bird swing of green