Circle T Black Oak Leather Dog Collar - 20 in. with a Width of 3/4 in. Circle T oak tanned town collar for dog Made of full grain, top quality leather that has been vegetable tanned The tanning process uses tree bark to form a tanning liquor producing excellent leather character The hides are then aniline dyed for luxurious color Available in black color; measures 20-inch length by 3/4-inch width