Premium grade ABS GorillaPod plus precision engineered ball head with quick release clip and bubble level. Can be configured for still photography, videography, vlogging or live streaming in 3 modes: grip, wrap or stand. Supports DSLR/mirrorless cameras and devices weighing up to 6.6 lbs.
A: It is 30cm or 11 13/16" tall from the bottom of the legs to the top of the ball head platform (not counting the screw)
Q: Is this an arca mount or proprietary?
A: It has a standard 1/4"-20 mounting screw which is industry standard. You could buy a baseplate with a 1/4"-20 mounting hole that is Arca-type compatible for it, but it only comes with the mounting screw that directly fits in the base of your camera.
Q: Does it extend or get longer?
A: No
A: No, all plastic
Q: can I use my iPhone with this kit? If no, which accessory do I need to get?
A: This version does not include a phone clamp. Check Best Buy's site for several options from JOBY phone clamp's for under $20.