X-Large up to a 30 inch neck, 2 INCHES WIDE. Black Leather Collar with Hand painted "Koi" asian design with clouds and blue accent flowers! ALL leather all handcrafted, All handmade! comes with skull charm! Have your dog be the coolest guy /gal on the block! comes in small,med and large! Anagram Fine Art! Personalization is available! All non toxic and permanent!