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 7 Symmetrical Proportional Vintage Look Rusted Brass Large Plates! (1 3/4 inch x 1 1/4 inch) That Help Bring Out The Beauty Of This Hand Crafted Creation. We Used Only Vintage Rusted Brass Plated Hardware .