The GoGo® Martingale Collar is made from top-quality materials and comes with a lifetime 100% warranty. Excellent for training and designed for gentle control and gets a dog's attention without choking. The specially crafted hardware was designed for a smooth and quick release and the durable YKK plastic buckle makes for gentle, trouble free Collar removal.

Martingale Collar Sizes:
Extra Small is 3/8" wide and fits a dog with a 10-12" neck.
Small is 5/8" x 14-17"
Medium is 3/4" x 16-21"
Med-Large is 1" x 16-21"
Large is 1" x 20.5-27.5"
X-Large is 1.5" x 20.5-27.5"