Replace your Saito Engines' piston ring with this high-quality SAI45S09 replacement part. Made in Japan, it is compatible with 1:4, 1:5, 1:6, and 1:8 scale airplanes and helicopters that run on nitro and glow fuel. Suitable for age levels 8-16 years and above, this piston ring is a must-have for motor and engine enthusiasts. Its compatibility with Saito brand makes it an excellent buy for those who own a Saito engine. Get your hands on the Saito Engines Piston Ring C D Q SAI45S09 today and give your engine the upgrade it deserves.