This is a pair of Traxxas TRX-4 Aluminum Assembled GTS Shocks with Spring Retainers in Red.
The shafts are treated with Titanium-Nitride for enhanced performance.
Traxxas TRX-4 Aluminum GTS Shocks give your rig a custom look. With a variety of anodized colors available, and the included Titanium-Nitride treated shafts, these shocks deliver the same butter smooth damping as the stock shocks, but with improved performance.
The diameter of the shock body is roughly 11mm, 90mm in length at full extension and 65mm in length when compressed.
Please note that the shock spring are not included. The shock springs to use are TRA8041 for the front and TRA8040 for the rear.