Size: 19*7*1.5cm (7.5" X 3 X 0.75"), suitable for pet chicken/duck/ goose/parrot whose neck size is from 4.5in to 6.5in. Bell diameter: 0.5". Adjustable buckle design is easy to put on and off. Adjust the buckle and strap to fit better. The combination of red bowknot and black bowknot makes it suitable for pet couple or male and female small animals. The bell can not olnly serve as decoration but also let you find your pet quickly. These cute collars are great gifts for Valentine's Day, Christmas, Halloween, Mother's Day, Father's Day, Wedding party, Birthdays and etc. Your pets certainly love the accessories. The bowtie is made of high quality polyester and can be used for lots of times. Pet can wear this collar in different festivals. Note: This chicken/duck/ goose collar is only for decorative accessory, Not used for harness and leash.