Acratech GPs Ballhead with Gimbal Feature, Panoramic Head, with all Rubber Knobs, Quick Release / Detent Pin and Level, Supports 25 lbs. Gimbal Head Feature Reduced Base Diameter for Travel Tripods Overall Height - 3.9" / 98mm Overall Width - 3.2" / 38mm Weighs 1.0 lb / 0.5 kg Supports 25 lb / 11.3 kg Laser Engraved Dual Degree Markings