PetSafe Sure-Fit Harness, Adjustable Dog Harness from The Makers of The Easy Walk Harness MAXIMUM ADJUSTABILITY: Designed with 5 points of adjustment for a precision fit on any dog COMFORT: The center strap places pressure on your pet's chest, rather than at the base of the throat SAFETY: Durable nylon straps and reinforced steel O-ring for reliable restraint in any situation CONVENIENCE: Easy to use quick-snap buckles make putting the harness on hassle free SIZE INFORMATION: Medium size adjustable for chest girth of 22 - 30 in. around. Always measure your dog for best fit. HERE TO HELP: Call, email or chat with our expert U.S.-based customer care specialists Monday through Saturday at 1-800-845-3274 or ccc3@petsafe.net; they are ready to assist you and your pet EXPERIENCE: PetSafe has been an industry leading U.S. manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year Five convenient adjustment points - two on each side and one in the center Custom tailor each strap for a precision fit on your best buddy, no matter his shape or size Easily adjust the harness size as your puppy grows or if your dog&#039;s weight changes Perfect for hard-to-fit dogs and unusual body types