Vvhome 4 Rows Spiked Golden Rivets Studded Leather for Dog Collar Please measure the correct neck size of your pet before ordering. Size M: Total length 3"*22"(7.5*56CM), adjustable length 16.9"-20"(43-51CM) Size L: Total length 3"*24"(7.5*61CM), adjustable length 18.9"-22"(48-56CM) Size XL: Total length 3"*26"(7.5*66CM), adjustable length 20.9"-24"(53-61CM) harp spikes and studded cool design as the pictures show