Evolving over the years from one of Dive Rite’s original products, a basic dive reel, the Slide Lock (SL) line of reels is in no way basic. Its’ evolutionary roots stem from serious cave exploration where a variety of reels were needed to safely conduct just one dive. Today, many manufacturers make dive reels, but only Dive Rite has the SL Reel, a reel that quickly and easily locks and unlocks with just one hand. No more tightening or loosening a lock-down screw. Using either hand and a simple thumb flick, the SL spool can be locked or unlocked even while wearing thick gloves.