Material: stainless steel + PP, Product size: rope length 6m (stretch full length) No. 4-15 foot ring diameter dimensions are: 3.5/4.5/5.5/6.5/7.5/8.5/9.5/11.5/12.5mm; Features: U-shaped anklet design, easy to wear, the rope is elastic and not easy to wear, allowing the bird to move freely and comfortably; Suitable for small and medium birds such as cockatoos, parakeets, macaws, lovebirds, etc Practical Cage Accessories --- The elastic rope is resistant to abrasion and exercise of birds, can keep the bird healthy and happy. Allows your pet birds to move freely within certain limits and prevent them from flying far away. Design Feature --- Easy to wear, U-shaped foot ring, comfortable to wear, to ensure the safety of birds. Light and portable, can take your pet out anytime and anywhere. High quality --- High-quality plastic material, integrated steel wire, anti-bite and durable. Exquisite workmanship, meticulous handling, safe and non-toxic, will not harm birds. After-sales service --- 100% Satisfaction Guarantee. If for any reason you are not 100% satisfied, please let us know and our customer service team will do their best to assist you. Wide use --- With the rope, you can take your pet out whenever you want. Suitable for most birds, such as great owl, cockatoo, dove, magpie, peregrine, sun parakeet, crested myna, etc.