Full synthetic oil specifically develped for fishing reels. Full sysnthetic oil doesn't contain any solvent which might damage plastic and rubber. IOS-01 Pro low viscosity oil is for the spool bearings of bait casting reels and at the main shaft of spinning reels to remove friction.
IOS-02 Pro medium viscosity oil is for line rollers, spool bearing of oil bait casters, level winder worm shafts, oneway clutch and etc. 10ml