Size: Our multi-colored leg bands for chickens are 16 mm (0.63 inches) in diameter, and 200 chicken foot rings are plenty. And, in the fourth quarter of 2022, based on customer feedback, we eliminated the unrecognizable purple anklets and bolded the font so that the chickadees could be more easily identified. Package Contents: 2 packs of 100 chicken ankle bands each, 4 bright colors of red, yellow, green, and blue, 25 strips each, numbers ranging from 001 to 100, the quantity are enough, these bright colors make your poultry easy to be found; in addition, the laser-etched numbers are not easy to smear and the numbers can help you quickly differentiate your poultry SAFE MATERIAL: Our thoroughly designed chicken id bands are all made of high-quality plastic material, which is reusable and safe to use. Durable enough, not easy to break, and can be used repeatedly for a long time. EASY TO USE: These leg loops are designed with a simple clip and are incredibly easy to apply and release easily on your poultry. You can apply and remove the ring without any tools or scissors. Wide use: Chicken ankle bands can be applied for poultry management or breeding, and it is also very suitable for you to distinguish different species, allowing you to easily identify different types of chickens suitable for adult poultry, ducks, chickens, hens, etc.