Coastal Pet - Circle T Tan Oak Leather Dog Leash, (6 Feet) (with a Width of 3/8 Inches) (2-Pack) Circle T oak tanned leash is expertly made for long lasting durability 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 tan color; measures 3/8-inch width by 6-feet length