Horse Lead Products Made In Wisconsin All of Soft Lines horse lead products are made from multifilament polypropylene fibers. Panic snaps are nickel plated for corrosion resistance, improved durability, and a decorative finish! The horse reins products stay soft and pliable even in cold conditions and the fibers will not sliver. This custom woven product has built in stretch and also releases knots easier than nylon or cotton ropes. The specific gravity of poly rope is less than water so it naturally floats. Polypropylene lines have excellent resistance to salt water, will not absorb water and can be stored wet or dry. Customized Horse Roping Reins Products: Choose Your Style Choose Your Diameter Choose Your Length Choose Your Color Personalize Your Label