Rio Anti Twist Spey Swivel has earned a solid place in the Spey fishing landscape over the years. Spey casting generates torsion and twist that can transfer to our shooting line and produce kinks and loops that impedes casting. The Spey swivel is placed between the shooting line and the Spey head, and presto - no more line twist! A real improvement! 3-Per-Packge for several reels and spools.