This spring loaded systems makes launching and loading your boat a simple, one person job. Strong winds, current or rough water will no longer be an obstacle for launching and loading your boat. The Ezi-Guide will simplify launching or loading and will always guide your boat safely to the centre of your trailer. Solo launching and loading Avoid loading your boat off the rollers and damaging your boat U-bolt Ezi-Mount system (no power tools or drilling required) Slotted mounting bracket to suit 50 – 75mm cross beams 50mm U-bolts supplied Rust resistant dacromet finish Power Boat = 4.2m to 4.8m Sail Boat = 4.8m to 6.0m