The T-H Marine Z-Launch Watercraft Launch Cord is used and endorsed by professional angler Timmy Horton and by the majority of BASS and FLW fishing professionals. The patented Z-Launch Watercraft Launch Cord makes solo watercraft launching easier than you’ve ever experienced. The no-hassle launch cord is made of premium elastics and uses automatically adjusting tension when you back your boat, jet ski, or tow tube into the water. This cord is expandable to more than 20′ and attaches in just 3 steps.