Kyosho silicone shock oil in 650cst viscosity, intended for use in RC shock absorbers requiring a heavy-weight fluid. The 100% pure silicone formula is manufactured in Japan to Kyosho's best-quality and highest-grade specification, as stated on the bottle. Each bottle contains 80cc of oil, providing a consistent and measured supply for tuning or refilling shocks. Features: 650cst viscosity - heavy weight 80cc per bottle 100% pure silicone formula Made in Japan 7/7/26 cs