NEW DESIGN! Circular black insert allows the lead to loosen up quickly after tightening, for a more comfortable fit for the dog. It also prevents wear and tear. However if you prefer the original design, the insert is fully removable. Just twist and work free. ENJOY CALM WALKS – The Harness Lead dog leash and harness set was designed with ultra comfortable materials to safely prevent your dog from escaping and pulling. Dogs are immediately encouraged to slow their pace by using their own resistance against the leash. Our dog harnesses gently tighten around the chest only, not around the neck or armpits. SAFELY PREVENTS PULLING – The Harness Lead no pull harness fits all body types. When properly adjusted, the unique design doesn’t rub underneath the arms, unlike other dog leashes that prevent pulling. Our dog walking harness naturally calms down dogs, allowing a more enjoyable walk for both you and your pup. As with all dog harnesses, please do not use it to tie out, jerk, yank or correct your dog. PLEASE DO NOT USE TO TIE DOG OUT, JERK YANK OR CORRECT YOUR DOG. NEVER LEAVE DOG UNATTENDED WITH HARNESS LEAD ON. ESCAPE RESISTANT DESIGN – The one-piece escape proof dog harness makes it impossible for dogs to get out of the harness. If your dog attempts to back out of the harness, the leash will tighten like a slip lead. Harness Lead makes the perfect escape proof harness for dogs with high energy and dogs in training. USE AS A WALKING TOOL ONLY. DO NOT USE TO TIE DOG OUT. DO NOT LEAVE UNATTENDED AS THE LEAD WILL TIGHTEN AND IS NOT CHEW PROOF. FITS ALL BREEDS & SIZES – It is very important to properly fit the anti pull dog harness to your dog so it gently tightens at the proper points and not around the neck. Adjust the movable black stops to align with the front leg for a perfect fit. Small/Medium fits 14-40 pound dogs, Medium/Large fits 40-120 pound dogs, and Extra Large fits 120-200 pound dogs. For all sizes, the lead extends between 4-6 feet depending on the size of the dog. Detailed instructions are included. Rope diameter: SM 3/8"; ML 7/16"; XL 1/2". HANDCRAFTED IN THE USA – The Harness Lead dog harness was founded by a shelter volunteer who saw the need for a dog harness to prevent pulling and escaping in a safe way for both her and the different sized dogs in the shelter. Discover why our no escape dog harness is loved by dog shelters, volunteers, dog trainers and kennels across the world. Use with kindness. Do not jerk, yank or correct dog in Harness Lead. If dog continues to pull HARD, then leash is not working for dog , so discontinue use. Extremely important to properly fit by aligning black stops with front leg according to directions. This will prevent tightening around neck. Do not use for tie out, do not use to have dog tow weight. This is a walking tool and is not to be used for running with dog, as leash tightens and dog can control this by slowing his pace. Harness Lead is a leash & harness in one. REDUCES PULL: When dogs pulls against the leash, Harness Lead will gently tighten around the barrel only, NO tightening around the neck. Harness Lead utilizes a dog's own pressure against the leash to encourage and remind the dog to slow their pace. When your dog relaxes pull, the leash will relax as well. ESCAPE PROOF: If dogs attempts to back of out this harness, it will tighten like a slip lead, preventing escape. Must be used correctly, according to directions to be escape proof. ESCAPE PROOF AS WALKING TOOL ONLY. DO NOT USE TO TIE DOG OUT. IT IS NOT CHEW PROOF. REDUCES CHAFING: Made in a loose weave, the texture is soft to the touch. There are no buckles or hard edges digging into skin or backs of legs. If used correctly, it will not wrap into the sensitive armpit area where most chafing occurs. ADJUSTS TO ANY BODY TYPE: Align the movable black stops with the dog's front leg and it will fit any body type or breed perfectly. MULTIPLE USES: Harness Lead can also be used as a slip lead or collar lead for short term needs as well. SUPERB QUALITY, Harness Lead is double braided, tensile strength 4,000 lbs. HOW TO VIDEO LINK ON PRODUCT TAG US Patent No. 9,271,478