Coastal Pet - Circle T Oak-Tanned Rolled Leather Dog Collar Black,(22"Lx1"W) Circle T Oak Tanned Leather Round Dog Collar, 1", color: black, adjustable sizing to fit necks 16.5" to 19". The round collar has a leather core to ensure that they hold their shape and is rounded over lengthwise, expertly sewn together. Circle T oak tanned round dog collar will not mat hair. Made of full grain, top quality leather that has been vegetable tanned. Perfect choice for long-haired dogs or dogs with sensitive skin.