This collar will fit dogs with neck size 18 inch and up to 27 inch (45 cm - 70 cm) This Collar Is Extra Wide - Almost 1 3/4 Inch - Which Makes It Perfect Tool For Handling Large And Active Breeds This Leather Collar Is Made With 8 Symmetrical Proportional Silver Plated Round Rings With Gorgeous Blue Stones in the center!!!That Help Bring Out The Beauty Of This Hand Crafted Creation. We Used Only Silver Plated Hardware !