Our 3/4 inch wide leather dog collar is in Black or Burgundy leather. It has 1/2 inch tall solid steel spikes. The size 16 has 6 spikes. The size 18 has 7 spikes. The size 20 has 9 spikes. For correct collar size, measure your dogs neck. Size 16 will fit a dog with a 8-1/2" to 12" neck. Size 18 will fit a dog with a 11-1/2" to 14-1/2" neck. Size 20 will fit a dog with a 12-1/2" to 15-1/2" neck. MADE IN AMERICA