Compatibility: this rc upgrade kits is suitable for1/12 MN168 MN78Material: Made from aluminum material, these rc parts are designed to be sturdy and long term use.Package : Including 1 shocks absorber rc car pull rod kitsEasy to Install: Rc crawler spare part is easy to install, to replace old or damaged part.Design: These rc upgraded accessoriescan upgrade the performance of the remotes control car and improve the controllability Size Chart: Circuit Board Fixed Compartment :10.33cmx5.62cmx1.5cm/4.07inchx2.21inchx0.59inchTail :7.3cmx5.6cmx1cm/2.87inchx2.20inchx0.39inchMotor Holder:5.06cmx5.5cmx1.2cm/1.99inchx2.17inchx0.47inchTie Rod Length7.2cm/2.83inchTie Rod Short Length 7.05cm/2.78inchShock Absorber Bracket2.4cmx1.75cmx1cm/0.94inchx0.69inchx0.39inchFront Tie Rod Seat7.25cmx2.15cmx2.5cm/2.85inchx0.85inchx0.98inchRear Tie Rod Seat 7.25cmx2.15cmx1.65cm/2.85inchx0.85inchx0.65inchSteering Rod Length9.15cm/3.60inch, Adjustable To 10.15cm/4.00inchHole Spacing 8.4cm/3.31inch,Adjustable To 9.4cm/3.70inch,Bore Diameter 0.25cm/0.10inchServo Arm(25t)Steering Gear Fixed Tie Rod (Hole Distance5.2cm/2.05inch)Drive Shaft Bore Diameter 0.4cm/0.16inchTelescopic Length 6.95cm-9.4cm/2.74inch-3.70inchShock Absorber (Total Length 6.26cm/2.46inch, Hole Spacing 5.6cm/2.20inch, Stroke 0.8cm/0.31inch , Outer Diameter 1.1cm/0.43inch) Package Includes: RC Shocks Absorber RC Car Pull Rod Kits Note: Please allow slightly errors due to manual measurement and different monitors.