This is a set of aluminum handle nuts and retainers for ABU! The size is M8. There are left and right screws, so please check. Right-hand handles have right-hand threads, and left-hand handles have left-hand threads (reverse threads). Please note that older ABU 5001C models are left-hand handles but have right-hand threads. Material: Aluminum alloy (A2017) Main dimensions: Nut size: 10mm across flats Screw diameter: M8 Weight: Approx. 0.8g Compatible models: Can be used with ABU bait reels up to the 6000 series. Right-hand threads correspond to right-hand reels. Left-hand threads correspond to left-hand reels. By making the screw holes that fix the retainer oval, it fits handles with a center-to-center distance between the handle nut and fixing screw of 9mm to 10mm. Can be color-coordinated with spools, handle knobs, etc. *Does not fit Avail original handles other than the Pure Handle series. Material: Aluminum alloy Main dimensions: Usable nut size: 10mm across flats Pitch between nut and fixing hole: 9mm - 10mm Outer dimensions are almost the same as genuine ABU parts. Weight: Approx. 0.4g Compatible models: ABU 1500C, 2500C, etc. Reels with ABU part number #5328 retainer Avail Pure Handle, Pure Handle S *Does not fit Avail original handles other than the Pure Handle series. Price negotiations are not accepted.