CORE RC high grade 100% pure silicone oil for shocks and gear diffs. - Available in a large range of viscosities from the lightest 100cSt shock oil to the heaviest 500, 000cSt diff oil. - Extremely temperature resistant in both warm and cold conditions. - Fully sealed bottles for best transport without leakage, and super easy to use lid for easy precise pouring. - Large capacity 60ml bottle for less trips to the shops!