These carbon fiber inserts are specifically designed to work with the CRB Premium exposed reel seats. Length 88mm. Inner Diameter 14mm(.551") . Available in two sizes, 15.0mm O.D. and 15.5mm O.D. and in four colors : B (Black), BL (Blue), G (Gold), R (Red)
Size 15.0mm Fits CRB GEC2, GEC3 and EXS Reel Seats
Size 15.5mm Fits CRB NTR Reel Seats
Inside Diameter for both 14mm(.551")
i ordered this and it didnt fit on the GEC3 that i ordered ..