The product is a vintage 1960's Cox Control Line .15 gas engine that is compatible with Cox brand airplanes and aircraft. This 2-stroke engine requires nitro & glow fuel and has a displacement of .15. It is a United States-made engine suitable for 1:18 and 1:5 scale models, making it ideal for hobbyists aged 17 years and up. The vintage nature of this NOS (Never-Used-Stock) engine adds a nostalgic touch to any RC model vehicle collection.