North Florida cave diver, Woody Jasper, first invented the Explorer Reel around 1980. As cave explorations were becoming longer, deeper, and more extensive a reel was needed that could help an explorer make some serious penetrations into a virgin cave system. Less likely to entangle than other reels on the market, Woody's original reel was made of aluminum and a PVC spool. The side-handle style of the reel lent itself to exploration because it could easily switch from hand to hand while laying out line. Twenty years later, sidewinder-style reels were popularized in the technical diving community when DIR aficionados began using them for paying out line in deep caves at high speed on a DPV. Our Sidewinder series of reels are designed to be anti-jam by using precision machine tolerances between the frame and the spool making it nearly impossible for the line to slip between the spool and the handle. Choose between our Cave Explorer Reel (RE51900) with 900-feet of #24 line or our Wreck Explorer Reel (RE51550) that has 550-feet of #36 line, both with extra large stainless bolt snap.