Fastline's Penetrate & Release lubricates, protects and prevents seizure. Prevents further corrosion and oxidation. Safe on all metals. Will not attack plastic cables. Prevents and releases seized metal parts and also frees badly corroded nuts and bolts. This product has a lower freezing point than WD40 so is ideal for using on throttle/brake cables during winter months. 12 x 400ml aerosol cans