This is a pair of Large pushrod O-rings for the O.S. FF-320 Pegasus, FT-300 Gemini, FT-240 Gemini, FT-160 Gemini and the FT-120II Gemini II multi-cylinder four-stroke engines. FEATURES: -Silicone construction. INCLUDES: -Two large O-rings. SPECIFICATIONS: -Outside diameter: 7mm -Inside diameter: 3mm COMMENTS: -The small pushrod O-rings are available by ordering OSMG7372. ***KPM 4/6/94***