Formerly referred to as X1R, Penn Synthetic Reel Oil or Penn Lube as it is now called is the same product anglers have relied on for years to maintain their reels. Nothing about the formula has changed, not the corrosion and wear protection the product is famous for, not even its blue color. Extensively tested and Penn-approved, it assures smoother operation and superior lubrication for drastically increased performance. Ideal for: handle knobs, ball bearings, worm gears and line rollers.