Adjustable Cat Collar Size：
Small size fit neck: 16-26(cm) (about 6.3-10.2in), width: 1.2cm
Large size fit neck: 20-32(cm) (about 7.9-12.6in), width: 1.2cm
Please measure your dog's Neck Circumference and, according to our description size information to select fits size.
Adjustable Collar Perfect for small dogs puppy, such as Chihuahua, Yorkshire, etc.