Our leather spiked dog collars are made with 1 inch wide one-Ply latigo leather. These spiked dog collars have metal spikes that are 1/2 inch tall and are available in sizes 20, 22, 24 & 26. The size 20 has 8 spikes. The size 22 has 9 spikes. The size 24 has 11 spikes. The size 26 has 11 spikes. MADE IN THE USA! For correct collar size, measure your dogs neck. Size 20 will fit a dog with a 13 to 16 inch neck. Size 22 will fit a dog with a 15-1/2 to 18-1/2 inch neck. Size 24 will fit a dog with a 16-1/2 to 20 inch neck. Size 26 will fit a dog with a 18-1/2 to 22 inch neck.