They are made of nylon cord, parachute cord actually. They're really durable and when braided like in the first two pictures they're super soft. They're a little rougher when knotted like the third picture, but still fairly soft. I can mix two colors when knotting it like the third one, and for 9 foot reins I am charging $35 plus shipping. For the simple braids, depending on the length, snaps, and thickness I charge between 15 and 25. If you're interested let me know and I can give you more details on colors and what not.