KINGJOY VT-1510 Ball Head Video Fluid Tripod Head Dydraulic Damper With Quick Release Plate A scientific and comfortable hydraulic damping ball head for your tripod, 1/4? screw and 3/8? screw hole make it possible to mount on almost all devices, 360° rotatable ball head and detachable handle make it convenient for you to adjust the angle to suit your needs better. Fine tuning know of hydraulic damping system makes it possible for you to adjust it accurately. A perfect choice for both professional photographer and shutterbug.