Officially licensed from King Off-Road Shocks, these shocks feature a completely new design from the ground up and are built and ready to handle the rocks. Your scale build will never be the same once you bolt up a set of these awesome looking shocks!Specifications:Machined Billet AluminumKing Listed on Top and Retainer RingDual Spring DesignHole to Hole (Compressed): 2.40in / 61mmHole to Hole (Uncompressed): 3.14in / 80mmOverall Length: 3.49in / 88.8mmTravel Hength: 0.74in / 19mmShock Body OD: 0.39in / 10mmSpring Body OD: 0.57in / 14.5mmShaft Diameter: 0.13in / 3.5mmWeight: 0.65oz / 18gNotes:Fits Trail Finder 2 Truck Kit w/Mojave Body Set (Z-K0042 "Disc")Fits RC4WD Trail Finder 2 Truck Kit w/Mojave II Body Set (Z-K0049)Fit Traxxas TRX-4, but will require both 2mm (Z-S0600) and 3mm (Z-S0806) Black Spacers with M3 HolesUse blue (medium) thread lock to the bottom shock shaft rod end before installing onto your vehicle to help keep it in place.