We can make this collar to 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 Symmetrical Proportional Vintage Look Rusted Nickle Large Plates!!!That Help Bring Out The Beauty Of This Hand Crafted Creation. We Used Only Vintage Rusted Nickle Plated Hardware !