GENUINE 3M REFLECTIVE MATERIAL - These martingale reflective collars use the highest quality reflective material for superior night time visibility and durability. EXPERIENCE BETTER CONTROL OF YOUR DOG - Martingale collars, also called limited slip collars, give you full control of your dog by spreading out the pressure evenly around their neck. That's what makes martingale training collars so effective! PREVENT YOUR DOG FROM BACKING OUT OF THE COLLAR - a properly fitted martingale no slip collar for dogs will keep your dog from sliding out when they bolt after a squirrel! Great for small or large dogs with necks larger than their head like Italian Greyhounds or other sighthound breeds. QUALITY MATERIALS AND CONSTRUCTION have been a part of every If It Barks collar since 2002. If any of the stitching or hardware fails with regular wear, we'll replace it for you. HANDMADE IN THE USA - These designs have been trusted by thousands of dog owners for the last 15 years. If you ever have any questions or need help, customer support is always there for you!