Features： 1、ADJUSTABLE LEG BANDS: There are 6 buckles inside the Duck bands, adjustable according to the animal's leg size, not easy to change frequently. 2、DIY WRITING: Chicken leg bands can be DIY written by yourself for identifying poultry, you can easily identify your poultry by these markings. 3、WIDELY USED: Chick leg bands identify roosters and hens of different ages, breeds and markings for poultry breeds, ducks, chickens, fowls and more. 4、100PCS: Chick leg bands are 100pcs in total, sufficient quantity to meet your DIY needs, easy to install and remove, easy to clean. 5、PP MATERIAL: Chicken leg bands are made of PP material, reusable, not easy to damage, can be used for a long time. Specification： Item Type: Chicken Identification Leg Bands Material: PP Weight: Approx. 159g / 5.6oz Calibre: Approx. 18-21mm / 0.7-0.83in Suitable for: Large Chickens, Ducks, Geese Use: Marking Equipment Colour: Green Package List： 100 xChicken Identification Leg Bands