◆ Handle center shaft size → 5x8mm, compatible with Daiwa and Abu reels. (Please understand that adjustments to the hole clearance may be necessary due to product errors of 1-2mm in overseas products.) ◆ Weight: Approximately 8-9g ◆ Compatible with Daiwa bait reels (Steez, Zillion, Tatula, Ryoga, Millionaire, etc.) and other models with the same specifications. ◆ Conversion adapter for Shimano reels is available for an additional 250 yen. If you wish to purchase one, please comment before purchasing. I will change it to a dedicated listing, and then please make your purchase. ◆ The shaft axis of the knob mounting part is 4mm, so Shimano A type and Daiwa S type knobs can be installed. ◆ Regarding knob installation The size and number of bearings, and the number of shims will vary depending on the knob being installed. Please prepare the necessary sizes and quantities yourself. ※ Bearings etc. are not included. ※ If the knob does not rotate after installation → The rotation of the knob may be stopped by tightening the screw. This can be resolved by loosening the screw, reducing the number of shims, or changing to thinner bearings. ※ Since I am selling as an individual, I will ship with simple packaging. Thank you for your understanding.