This is a Geez Unilock, the early Type S model. The taper has been adjusted at a workshop. The tip is approximately 11.5mm. Please excuse any errors as I haven't measured it precisely with calipers. It has incredible spin and almost no squirt. I don't think you can get this in Japan. The ferrule was replaced a while ago, so it's still in good condition. It's been used, so I'm selling it for less than the retail price. Please comment if you have any questions. Thank you. Price is negotiable.