Material: PlasticDiameter: 10mm/0.39inchInside diameter: 8mmHeight: 6mm/0.24inchBrand new and high qualityEasy to remove and re-useThey can be opened wider.Use for identifying similar looking birds with easy.Use them to keep different breeds apart, mark suspected cockerels, seperating hatches.The rings split in half on a small hinge making them easier to put on the leg.Suitable for various poultry, birds, hens, ducks, etc.Quantity: 150PcsColors: Random ColorPackage included: 150 pcs x Poultry Leg RingsNote: Random color, don't accept the specified color.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.