Noddy & Sweets Bandana "Ditsy Flowers".Retro fit Bandana can be used with any standard clasp/buckle collar up to 1" width. Collar simply slides through the top of the Bandana, providing an adjustable perfect fit. Available Bandana sizes approx; X-Small     5"-4"     13-10cm Small        7"-5"     18-13cm Medium   10"-7"     25-18cm Large      12"-8"     30-20cm For custom sizes please contact us.