product content [M:(neck 13-15) Yellow].Soft velvet dog puppy pet collar decorated with beautiful rhinestone and exquisite bowknot diamond charm,easy to wear and remove.Its a new craft for rhinestone studded and this will keep the diamonds more flexible,good touch velvet and elegant metal buckle.looks flashing pretty and colorful.With this collar any cats or dogs will look like a princess.perfect for party costume, wedding holiday gifts.You can choose the fit size for your lovey pet.XXS:Overall length 0.6*10(1.5*25cm),will fit 6-8(15-21cm)neck./ XS:Overall length 0.6*12(1.5*30cm),will fit 8-10.6(21-27cm)neck./ S:Overall length 0.6*14.5(1.5*37cm),will fit 10.6-13(27-33cm)neck./ M:Overall length 0.8*16.5(2.0*42cm),will fit 13-15(33-39cm)neck./ L:Overall length 1.0*20(2.5*51cm),will fit 15-18(38-46cm)neck./ XL:Overall length 1.2*22(3.0*56cm),will fit 16-20(41-51cm)neck./ XXL:Overall length 1.2*24(3.0*61cm),will fit 18-22(46-56cm)neck./.Its really very important for size measurement.Many customers placed orders by wrong size and fall into an inconvenient return and replacement.To save your time and money,please choose a correct size option before you order,if you have any questions please contact us at any time .