Features:1.Adopting high quality material, non-toxic, wear resistant, reusable, sturdy and durable for long time use.2.Comes 100pcs in one bag, each ring has a number mark, which will help to keep different letter pigeon apart.3.Simple clip design makes it easy to apply and remove.4.Available in 6 different colors, you can choose as your like.5.Suitable for letter pigeon or most of adult birds weight about 400g.Specifications:Condition: NewType: Poultry Leg RingsMaterial: PlasticOptional Color: Red, Yellow, Pink, Blue, White,GreenInner Diameter: Approx. 8mm 0.3inchHeight: Approx. 5mm 0.2inchQuantity: 1 x Bag of 100PCS Poultry Leg RingsNumber: 001-100Suitable for letter pigeon or most of adult birds weight about 400 gPackage Include:1 x Bag of 100PCS Poultry Leg Rings