The Foba Mini Superball Ballhead is a compact fixation device with a standard head and camera mounting screw of 3/8" size.Featuring large locking levers that securely lock with a mere twist, the head is quite easy to handleIt can take a maximum load capacity of 12 lbsThe ball sits in a Teflon collar that ensures smooth movementUser-adjustable tension allows for fine tuningThe base diameter measures 2.5", while the height is 3.9", and it weighs 20 oz