The award winning Aero Technium MgS XS-B Smoother , lighter and stronger than the original Magnesium body and rotor to keep the weight of the reel down to a ultra light 440g Super slow oscillation results in 100 turns of the rotor for every rise and fall of the spool - this gives unrivalled line lay, putting casting potential into uncharted water. Shimano\'s instant drag allows for quick adjustment of the drag for locking up powerful casts 9 Shielded A-RB\'s and X-Ship engineering results in the smoothest of retrieves even under pressure Long, lightweight handle design offers maximum winding power Supplied with 1 Cold Forged Aluminium spare spool