This is the Gmade 93mm XD Piggyback Shock Set. Features: Fits 1/10 scale crawlers & trucks, 1/10 scale EP buggys and Short course trucks (such as Axial SCX10, Associated B4/B44 and SC10 4x4) Easy shock setup changes using adjustable piggyback valve CNC machined aluminum shock bodies, aeration screws and piggyback bodies Titanium gray anodized shock bodies Red anodized aeration screws Silver anodized piggyback bodies Lower shock ends includes red anodized aluminum balls Fully threaded for rapid adjustment Delrin pistons 3.5mm thick shock shafts Shaft exits through double O-ring seals Easy load shock seal assembly Laser engraved for authenticity Specifications: Length (Mounting hole to hole): 93mm Shock Body Diameter: 14mm Spring Diameter: 19mm Spring Length: 58mm Full Shaft Travel Range: 26mm (without Rubber bump stop) Shaft Diameter: 3.5mm Includes: (2) Titanium gray anodized aluminum shock bodies (2) Red anodized aluminum aeration screws (2) Silver anodized aluminum piggyback bodies (2) Shock springs All necessary hardware to finish the shocks Assembly instructions Bottle of shock oil