Adjustable Chicken Collar: The hook rooster collar has a hook and loop design, which can be adjusted according to the size of the neck circumference of the poultry. It is very simple and convenient whether it is worn or taken off. Quality Assurance: This cock collar is made of soft nylon material, rugged and reliable, easy to distort, not be a problem for long wear. The most important thing is that it will not hurt the pets neck and will not feel uncomfortable. Collar Size: The length of this adjustable cock collar is about 7.87inch/20cm, width 0.78inch/1.98cm. The plastic buckle can be matched with the hook and loop fastener to control the length of the collar, making chickens and ducks more comfortable and suitable for wearing. Reduce Poultry Noise: Wearing a chicken collar can reduce the amount and frequency of noise from poultry such as chickens, ducks and geese. A rooster collar cannot guarantee to completely stop your rooster from crowing, but it can effectively reduce problems such as cockcrowing, disturbance of neighbors, and disturbance to the peace of the people. Wearing Operation Guide: The chicken collar is light in weight, can be folded at will, can be carried with you, and does not take up space. You need to be careful when tying chicken collars to prevent them from attacking you. If you fail the first time, please dont force it. You need to try a few more times to get used to it.