Feature 1、Through these signs, you can easily identify whether your poultry is with your neighbor's poultry, and you can also track poultry of different breeds mixed in the same house. 2、These foot rings are made of high‑quality PP plastic material, durable, easy to use, reusable, easy to install and remove, and easy to clean. 3、Used to identify roosters and hens of different ages, breeds, and markings. Suitable for poultry breeds, ducks, chickens, hens, etc. 4、Easy‑to‑find leg ring, our leg ring contains 100pcs single colors and contains 001‑100 numerical symbols. You can use it to classify different poultry, which is enough. 5、Adjustable foot ring, there are 6 card slots inside the foot ring. The foot rings can be retracted according to the size of the animal. One is enough to not need to be replaced. Item Type: Poultry Leg Bands Material: PP Plastic Color: Orangered Mouth Diameter: Approx.18-21mm / 0.71-0.83in Numbers: 1-100 Weight: Approx. 159g / 5.6oz Application: Suitable for large chicken, duck, goose Package List 100 x Poultry Leg Bands Note 1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.