The Zeiss V-60 Versatile Ballhead festures adjustments of up to 115 degrees making this head a versatile option for almost any scenario. The resistance of the head can be adjusted to suit the individual device you are using. Features3/8" Thread CompatibleExtendable Control HandleErgo Friendly Adjustment KnobsBubble LevelARCA Swiss Compatible1/2-20 Extension Plate with Keeper Included