Small size for 2*20"(5*51CM) Neck 15-18"
Medium size for 2*22"(5*56CM) Neck 17-20"
Large size for 2*24"(5*61CM) Neck 19-22"
Note: Before you order,Be sure your dog's neck is suitable for this size (That's very important).
Package Included:
1 x dog Collars