About this product range:~ Car Restraint/ Walking Harness, Small. Up to 12" Neck & 22" Body. Fully adjustable to smaller size for a really good fit. Keep the dog under full control at all times both walking & in the car with one harness. Restraint Strap, which stays in the car, supplied, complete with full instructions. Size Guide: Border Terrier, Shi Tzu, Dachsund. Normally Black Webbing.