http://tinyurl.com/k8rel3h

IFLOW PRO A Portable Dolly For DSLR, Compact Cameras, Go Pro & Smartphones

The new IFLOW universal dolly to stabilize your camera when you're shooting, latches on existing surfaces in seconds

Fills a need for professionals and enthusiasts alike as the small dolly can be easily taken to any location for smooth filming and image taking

Strong metal springs ensure a proper fit allowing to use on a variety of surfaces, from curbs to railings

Four smooth, quiet wheels allows more fluid camera movements for shake-free video

Has a large deck with a 1/4 inch screw that can be used for mounting a camera, ball head, video head, GoPro mount, smartphone holder or even a small rig