Neargo Walk Harness - gently discourages your dog from pulling while on a leash. Easy to fit and comfortable to wear, the Harness makes walking enjoyable for you and your dog. The front-chest leash attachment helps you steer your dog to the side and redirect his attention toward you. The front strap rests across your dog’s chest instead of putting pressure on the delicate throat, so there’s no choking or gagging. Now you can take the lead and enjoy the freedom of stress-free walks. Measure Your Dog's Girth Measure around the deepest part of your dog's rib cage. Measure Your Dog's Chest Measure across the width of your dog's chest, starting and ending one inch behind their front legs. Collar Set Size Chart Size: Leash length (4') ,Small (Neck 9.84"-14.56"), Weight(under 8KG) Size: Leash length (4') ,Medium (Neck 13.77"-21.65"), Weight(under 15KG) Size: Leash length (4') ,Large (Neck 16.92"-26.77"), Weight(under 35KG) Harness Set Size Chart Size: Leash length (4') ,Small (Chest 13.77"-21.65"), Weight(under 8KG) Size: Leash length (4') ,Medium (Chest 19.68"-29.52"), Weight(under 15KG) Size: Leash length (4') ,Large (Chest 22.83"-38.97"), Weight(under 35KG)