1、Durable Material: These foot rings are made of premium plastic PP material, which is strong and wear resistant, durable and long lasting.2、Classification Marking: Identify roosters and hens of different ages, breeds, markings, suitable for poultry breeds, ducks, chickens, chickens, etc.3、Identifying Poultry: With these signs, you can easily identify if your poultry is with your neighbor's poultry, and you can track a mix of different breeds in the same house.4、Writing Marker: This farming appliance can write marks on its own, even foot rings of the same color can be marked with different marks, and will not be mixed with other people's.5、Easy to Use: This poultry foot ring is reusable, convenient to use, easy to install and remove, and easy to clean, perfect farming tool.