6.25Inch Double Kingpin Surf Skateboard Trucks S7 Adapter Gravity Casting Rear Trucks Red Spring                Our trucks are made of gravity casting technology, after heat treatment, inside structure is very strong. You don't need to worry about quality.     Note: When the dual kingpin truck is used with other surfing adapters, it needs to be installed on the rear truck.     Adapter Model: S7     Rear truck: 6.25inch double kingpin surf skateboard truck     Gasket: 10mm/6mm     Shock cushion: random colors, don't accept the specified color     colour: black/silver     Material: aluminum alloy          Package Contents:     1 x S7 adapter     1 x 6.25inch double kingpin surf skateboard trucks     1 x 6.25inch bracket (Installed on S7adapter)     1 x 10mm Gasket     1 x 6mm Gasket     1 Set x screw          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.