Doggie Design American River Ultra Choke Dog Harness Black (Large Chest: 19"-21" (Most Important) Pets Weighing: 16lbs.-25lbs.) Doggie Design is the FIRST and ONLY company in the world to create this Exciting New Harness Design Our New Wrap and Snap Harnesses are EASY TO USE, lightweight, soft and feature dynamic colors and prints for Spring CERTIFIED BREAK Strength Tested to 386 Lbs, by an International Independent Testing Laboratory CERTIFIED BREAK Strength Tested to 386 Lbs, by an International Independent Testing Laboratory DIMENSIONS Large Chest: 19"-21" (Most Important) Pets Weighing: 16lbs.-25lbs