The Sea Guide uplocking fly reel seat has a unique design that allows this machined 6063 aluminum fly reel seat to accept virtually any fly reel made! This model includes a matching end cap. New profiled pipe fly reel seat. Double locking nut. Excellent Sea Guide quality. Length : 100mm. O / D : 19.0mm. I / D : 16.0mm. O / D1 : 22.5mm. L1 : 8.0mm. Black Matt. Weight : 35gm