One-piece design: no buckle or clip, only one slider to adjust the harness.Automatic Elastic Pull Rope Adjustment: When the bird crawls and flies, it automatically adapts from the chest to the back, the effective pull rope design can reduce the pressure contact points of the birds.Mandatory: This parrot leash is a must have for birds who like to take birds out.HIGH QUALITY MATERIAL: The pull cable is made of a sturdy nylon webbing which is rubbery and bite resistant.Adjust the taste of life: you only need a little patience and a lot of food, almost any bird can train to wear it. Add life to the fun.Product Name: flying parrot leashMaterial: nylon ropeSize Reference (approx) (1cm = 0.39in):S: Head length is 8cm, head to body height is 8.5cm. The elastic band is 130cm long and 2.5mm in diameter. The length of the nylon rope is 52cm, the width is 1.1cm, the total length of the rope is 182cm;M: Head length is 9.5cm, head to body height is 10cm. The elastic rubber band is 130cm long and the diameter is 2.5mm. The length of the nylon rope is 62cm, the width is 1.1cm, the total length of the rope is 192cm;L: Head length is 11cm, head to body height is 12.6cm. The elastic band is 130cm long and 2.5mm in diameter. The length of the nylon rope is 79cm, the width is 1.1cm, the total length of the rope is 209cm;XL: Head length is 12.5cm, head to body height is 14.2cm. The elastic band is 130cm long and 3.5mm in diameter. The length of the nylon rope is 93cm, the width is 1.1cm, the total length of the rope is 223cm;Package Listing:1x parrot leash