The Daiwa Legalis LT body (light yet tough) is constructed from a carbon-based composite that is much lighter than conventional materials yet very durable. With a much greater strength to weight ratio, the reels are lighter and can be handled without fatigue over the long course of a full day&&';;s fishing. The spool design features the Advanced Ballistic System or ABS. The oversize spool also holds more line and can exert more pressure on hooked gamefish. The Air Rotor and Air Bail are carbon composite designed lighter and stronger than conventional designs. Smoothness of operation is assured by 6 ball bearings and a roller bearing. Carbon Light Material Housing - LT Concept ABS Spool (Advanced Ballistic System) Machined Aluminum Handle Air Rotor and Air Bail 6 Bearing System ( 5BB+1RB)