Dogs Kingdom 3 Rows Silver Rivets Studded Pu Leather Adjustable Dog Collars Necklace For Medium/Large Dogs Black Brand new & high quality PU leather dog collars, soft and eco-friendly. XS:1.6"(4cm) width, 20"(51cm) total length, neck for 15-18"(38-46cm) S: 1.6"(4cm) width,22" (56cm) total length, neck for 17-20"(43-51cm) M: 1.6"(4cm) width,24" (61cm) total length, neck for 19-22"(48-56cm) Kindly please confirm the size for your pet before your order.