These are the optional Team Integy Alloy Front Lower Arms for the HPI E-Firestorm and Nitro Firestorm Vehicles. FEATURES: Alloy construction Anodized blue in color INCLUDES: Two Alloy Front Lower Arms REQUIRES: Installation on the vehicle SPECS: Length: 97mm (3.8") Width: 30mm (1.2") Height: 18mm (0.71") COMMENTS: Also available in Silver (INTC9374) cnh 1/21/10 ir/jxs