Simple and safe operation No-hassle design Easy to attach Extend to over 20′ Will not, unlike rope, pull on your boat Stay safe and dry when launching your boat alone Great for ramps with “no current” laws The patented Z-LAUNCHâ„¢ launch cord for watercraft makes launching your boat alone easier than ever before. Made of premium elastic, the no-hassle launch cord automatically adjusts the tension as you launch your boat, jet ski or tow tube, so your boat won’t shake back and forth as you pull the trailer forward. The Z-LAUNCHâ„¢ launch cord for watercraft is expandable to over 20′ and can be attached in just 3 steps. Attach a hook to your boat, connect a steel ring to the winch and lock the winch. You’re ready for the smoothest launch on the water. Approved and used by professional fisherman Timmy Horton. Used by most BASS and FLW anglers. INSTRUCTIONS: Attach the spring loaded shackle to your boat’s eye hook Attach the stainless steel ring to your trailer’s winch hook. (We recommend pulling out about 2 to 3 feet of your winch strap before locking the winch) Lock your trailer winch After steps 1, 2 and 3 are completed, loosen all safety and tie-down straps on your trailer to prepare your boat for launching. Slowly lower your trailer and boat into the water until the boat floats backward. Slowly pull the vehicle forward. This will cause the Z-LAUNCHâ„¢ cord to expand and pull your boat toward the ramp. When the vessel comes to a stop on the boat ramp, pull the vehicle further forward until the trailer is clearly out of the water. Now you can release the Z-LAUNCHâ„¢ cord by releasing the trailer winch and detaching the ring and shackle from the trailer and vessel. Attach your boat to the dock or shoreline and park your vehicle. Specifications Available lengths: 10′ (boat up to 16′), 15′ (boats up to 22′), 20′ (boats up to 35′) Connections: Stainless Steel Color: Black”