Monty Roberts Official Set of Two 30 feet Long Lines Monty Roberts uses two lines to train a horse to be well balanced and empowered to move with natural grace, shape and rhythm "Cushion web" lines constructed of lightweight nylon over a cotton core have brass snaps on the lead ends and are weighted on the tail ends for easy casting These Flat Lines are easier on the hands than Round Lines and the buttery soft material is easy on the hands but offers maximum durability Set of two, 30 foot lines, for Montys Method and designed specifically for schooling from the ground Monty believes that single line lunging damages your horse's ligaments, tendons and muscle but Double Line lunging creates balance