This is the Team Integy Silicone Air Filter Adapter for the Traxxas Revo. FEATURES: Constructed of silicone, black in color INCLUDES: Team Integy Silicone Air Filter Adapter for the Traxxas Revo REQUIRES: Instaling between carburetor and air filter SPECS: Length: 2.9" (75mm) Outer Diameter: 0.79" (20mm) Inner Diameter: 0.51" (13mm) jxs 4/27/06 ir/jxs