1 set Water Bridge Surf Skateboard Trucks Rail Adapter & 1 set Arrival Rail AdapterThe surf adapter fits to any skateboard and mounts to front truck.Experience 3x tighter turns, smooth fast pumping, improved flow, increased deck articulation and grip around curves.Enhances truck performance for a skateboard, longboard, or drop-through board.Transforms a regular or reverse kingpin truck into a surfskate truck - great surf trainer The bottom plate is designed to optimize strength while minimizing weight. The ultra-low styling brings a stable driving feeling.Great for skateboard lovers.type: hollow styleName: Rail AdapterColour: BlackMaterial: aluminum alloyPackage Contents:1 x Surf Adapter4 x 28mm screw4 x 18mm screw1 x rear axle base2 x 12mm spacers1 set x screws2 x wrenchNote: Shock-absorbing pad color random, don't accept the specified colorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.