FOR DOGGIE STYLZ HARNESSES ONLY - NOT COMPATIBLE WITH OTHER BRANDS Doggie Stylz Dog Harness Vest Strap Extender Your service dog's comfort is essential, and our Doggie Stylz Dog Harness Strap Extender gives you an additional 3-5 inches of strap length. If your service dog harness is too snug, it can be uncomfortable and even cause damage to your service dog's fur or skin, leading to further issues. The extra strap length also gives your service dog the freedom of movement they need to do their job to the best of their ability. This service dog vest Girth Strap Extender is compatible with our harnesses that have the 1 inch,1.5 inch and 2-inch-wide straps. (See Sizing Chart) The extender plugs right into your existing Doggie Stylz vest. The Doggie Stylz Dog Harness Strap Extender is made to last and constructed with durable polyester and are double-stitched to hold up to continuous use. Easy to connect and disconnect as needed to provide you and your service dog with security and comfort.