This No SlipTM or Martingale Nylon web collar is excellent for dogs who easiy slip out of their collars. It was initially used for greyhounds and other dogs whose necks are as large or larger than their heads. It can also be used for training. Unlike a choke collar, the closure is limited to prevent the collar from becoming too tight and spreads he pressure over a greater area. The collar is adjustable from 14" to 20"
