Rrruffler Starrrs Decorative Collar/Costume for Dogs Size XS = 8-10" neck / S = 10-12" neck / M= 12-15" neck / L= 15-17" neck / XL = 17-20" neck Made in the USA Elasticized neck; super easy to put on and take off Your dog will love wearing it Look for other great pet fashion without the fuss with the Original Rrruffler