WATERBORNE SKATEBOARDS Surf and Rail Adapter - Surfskate Trucks Fit to Any Skateboard - Carve, Cruise, Ride Like a Surfboard - Works with Cruiser, Complete, Drop-Through Longboard, Penny Board - High Performance Surfskate Pack: Waterborne Surf and Rail Adapter bundle mounts between your skateboard deck and the front and rear truck to create a surf-skate that pumps, carves, and controls slides with the precision of a surfboard - I paid $79 on Amazon and used it lightly for about a year on a longboard/cruiser. Worked ok, but probably better for a shorter board. I recently bit the bullet and bought a top-of-the-line Carver Surfskate (see photo), which works a lot better but costs $300! So I'm selling this adapter kit and turning my longboard back into a cruiser. - In original box with all hardware included.