These are the GTR Hard Anodized Teflon-Coated Shocks from Traxxas. FEATURES: Fully assembled Hard anodized, Teflon coated bodies Titanium shock shafts YOU WILL RECEIVE: Two Front Shocks Two Rear Shocks One Bottle of 40wt Silicone Shock Oil Instruction sheet REQUIREMENTS: Shock Springs SPECIFICATIONS: Length Fully Compressed (center hole to center hole): 39mm (1.5") Length Fully Extended (center hole to center hole): 47mm (1.9") cnh 8/12/09 ir/jxs &