Butt OD: 10.26mm/0.403. A full set of Pacbay Minima black and gold guides, blue thread and Sensei epoxy resin.all you have to do is whip on the guides and varnish! Even though we were working with a higher modulus carbon than the XL50 range the actions are almost identical so even though we wanted a powerful super fast action these blanks are light,responsive and parabolic (so not poker stiff).