Braided leather martingale collar with full braided chevron twists are a popular choice. Handmade from soft bullhide leather in 1/2" tobacco and pink. Unlike similar collars, ours are hand stitched for extra strength and durability with cream stitching. Made with a 6" 2.5mm brass martingale chain, 18" closed collar opens to 20.5". Measure your dogs head to make sure 20.5" opening will slip over the head and fit snuggly enough your dog won't slip out of the collar. Bullhide will stretch a little with use.