Simple ball head with Friction, incl. PRS-45. Clamping the ball Adjustable via adjusting screw. Rotation about vertical axis adjustable with PAN button. Ball with 3/8 inch thread and mounted PRS-45 quick change unit with plate (1/4 inch mount) for light weight cameras. Bottom thread of the housing 3/8 inch. Housing made of black anodised aluminum. Ball of gray anodised aluminum.