This Latigo leather dog collar has 1/2 inch solid steel nickel plated Spikes, Studs and blue stones. Our 2-ply leather dog collar is available in Black or Burgundy leather and in Sizes 21, 23, 25, 27 and 29. For correct collar size measure your dogs neck. Size 21 will fit a dog with a 15 to 18 inch neck. Size 23 will fit a dog with a 17 to 20 inch neck. Size 25 will fit a dog with a 19 to 22 inch neck. Size 27 will fit a dog with a 21 to 24 inch neck. Size 29 will fit a dog with a 23 to 26 inch neck. MADE IN THE USA!