This collar will fit dogs with neck size 17 inch and up to 21 inch (43 cm - 55 cm) This Collar Is 1 inch Wide - Which Makes It Perfect Tool For Handling Medium Size Active Breeds This Leather Collar Is Made With Attractive Plates!!!That Help Bring Out The Beauty Of This Hand Crafted Creation. Available In Brown or Black Very Strong and Thick Perfectly Oiled and Selected Leather This collar is made of very strong, durable and soft, solid leather. No doubled up fillers or machine stitches...which means the edges won't fray! "Functionally fashionable". Plates are hand set with rivets. Hand set rivets secure the stainless steel buckle and D-ring (for tags and leash.) Hard to decide black or brown? Huge saving when you get set of 2 collars !