Coastal Pet Products Circle T Oak Tanned Leather Round Dog Collar, 3/8" x 12", Black Circle T oak tanned round dog collar will not mat hair Made of full grain, top quality leather that has been vegetable tanned Round collar have a leather core to ensure that they hold their shape and is rounded over lengthwise, expertly sewn together Perfect choice for long-haired dogs or dogs with sensitive skin Available in black color; measures 12-inch length by 3/8-inch width