Durable, pleasant to the touch. Well constructed with the right amount of friction in the ball. The movement is very slightly grungy (in contrast to the XB-44's oily smoothness) and may show some wear. It looks more like my XB-28. A single ball and swivel knob is precisely calibrated. First you get some ball friction with free pan, then balllocks and panlocks. This makes panoramic shots possible. You can adjust the ball's friction, but you'll need a 2.5mm allen wrench to do this. The clamp is…