Back in, pull up, launch out. The Z-Launch Watercraft Launch Cord makes reliable watercraft launching easier than youve ever experienced. The no-hassle launch cord, made of premium elastics, uses automatically adjusting tension when you back your boat, jet ski, or tow tube into the water, so it wont jerk your watercraft around when you pull the trailer forward. The Z-Launch Watercraft Launch Cord attaches in just 3 steps. Fasten a hook to your trailer, connect a steel ring to the winch, and lock the winch. Youre ready for the smoothest watercraft launching on the water. 20 long. Wt: 1.5 lb. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.