◆ 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 required 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.