This is the Traxxas Air Filter Housing for the T-Maxx 2.5. This attaches to the throat of the carburetor. FEATURES: Black plastic air filter housing with cover screen and and changeable element Rubber angled neck for filter Rubber adapter for filter Zip tie for fastening INCLUDES: One screened filter One rubber straight neck One rubber adapter One zip tie REQUIRES: TRX 2.5 engine or any carburetor that has a 14mm or 13mm outer carb throat opening SPECS: Diameter: 1.5" (39mm) Height: 2.4" (60mm) including rubber adapter Diameter of carb adapter: 0.53" (13.5mm) Length of zip tie: 4.7" (120mm) 3/15/03 mcw ir/jxsBOX DIMENSIONS: 4.63" W. X 1.50" H. X 7.50" L.BOX WEIGHT: .06 LBS.