Unique ball-head for easy adjustment to any angle 270 degree rotating. When folded, Only 13.8cm so it fits in your pocket or purse. It’s super light (only 90g) so you can take as many pictures as you want without your arm hurting. Suitable for Most of smart phone which above andriod 4.2.2 and ios 5 or above, other phone could download “camera 360” APP to use. Quick spin knob for fast and secure mounting.