Classic spinning reel from Quantum of USA.  QSS series are no longer produced. Gears and pinions all stainless steel. Aluminium body. 3 s/s ball bearings. Bait sensor front drag system is extremely smooth, smoother than Penn 975 and CT 400 that I also use. Suitable for heavy fresh water use (No.6 as in the pic) or medium salt water. It's a pity new generation anglers cannot find such superb reels anymore.