This SAITO Engines Engine Gasket Set is perfect for .40 size R/C model airplane engines. Made in Japan, it is compatible with SAITO brand engines and is suitable for airplanes with a scale of 1:4, 1:5, 1:6, and 1:8. Designed for nitro and glow fuel, this engine gasket set is a new old stock (NOS) item and has not been opened or used. It is suitable for those aged 17 years and up who are interested in radio control and control line toys and hobbies. Keep your airplane engine running smoothly with this high-quality gasket set from SAITO Engines.