It doesn't matter how small or big your dog is - this design has almost any size to fit your dog. It's comfortable for the small dogs and durable enough for the big dogs who like to pull on walks. Made in New England USA Sizes: XXS - 1/2" width, fits 7-10" neck XS - 1/2" width, fits 9-13" neck S - 3/4" width, fits 11-18" neck M - 3/4" width, fits 12-20" neck M - 1 1/4" width, fits 12-20" neck L - 1 1/4" width, fits 15-24" neck XL - 1 1/4" width, fits 18-28" neck Shipping will take 7-12 days.