The first Power Leash was developed in 1997 and has since improved. The Power Leash Is one in a three-part training system for dogs. The Power Leash is an elastic leash offering 100 pounds of resistance at full extension. The pig suede lining is hand sewn into the handle for comfort and durability. The results of the Power Leash are best seen when used in tandem with a leather walking harness. The entire construction of the Power Leash is done by hand and made to order and may take up to a week for delivery.