The Surf and Rail Adapters fit and mount to any skateboard - Designed and Assembled.Experience 3x tighter turns, smooth high speed pumping, improved flow, maximum deck articulation across front and rear, and increased grip around curves compatible with all 4 wheels.Enhances truck percompatible withmance compatible with a skateboard, longboard, or drop-through board.Transcompatible withms a regular or reverse kingpin truck into a surfskate truck - great surf trainer Name: Front Truck-Surf Adaptercolour:SilverMaterial:Aluminum alloyPackage Contents:1 x Front Truck-Surf Adapter1 Pair x 6.25 inch skateboard bracket(The color of the gasket and screws are random, and the specified color cannot be selected)Only 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.