Dogs Kingdom Leather Black Spiked Studded Dog Collar 2" Wide, 31 Spikes 52 Studdeds Pit Bull, Boxer Collar Design: Fashionable and personalized Black Spiked Studded Dog Collar XS: 2"(5cm) width,20"(51cm) total length, neck for 15-18"(38-46cm) S: 2"(5cm) width,22" (56cm) total length, neck for 17-20"(43-51cm) M: 2"(5cm) width,24" (61cm) total length, neck for 19-22"(48-56cm) L: 2"(5cm) width,26" (66cm) total length neck for 21-24"(53-61cm)