[Instructions For Use]: This Chest Strap Has Two Fixed Positions, Which Can Shoot Various Perspectives: Fixed On The Chest, You Can Shoot Chewing Bones, Planing and Forefoot Movements:Fixed On The Chest, You Can Shoot Chewing Bones, Planing and Forefoot Movements; Fixed On The Back, You Can Shoot Running, Jumping, and Fetching Over The Head and So On. [ADJUSTABLE DESIGN]:Suitable for Large, Medium and Small Dogs From 15lbs To 120lbs (7kg To 54kg). For Smaller Dogs, The Chest Straps Can Be Removed, and All Adjustment Points Are Padded To Ensure Pet Comfort Comfort [Using Premium Material]:It Is Made of Washable Hydrophilic Material, You Can Safely Let Your Dog Swim and Play Without Worrying About Getting It Dirty. The Soft, Padded Construction Makes It Comfortable for Your Dog To Wear. [Easy To Use]: Quick Release Base Makes The Installation and Removal of The Camera Easier，The product only contains one harness and does not include any connector accessories [After-sales Service]: We Have Perfect After-sales Service, If There Is Any Problem with The Product, Please Feel Free To Contact Us, We Will Definitely Refund or Re-ship, Just To Give You The Best Shopping Experience