7" Magic Arm is used for monitor such as our products - LILLIPUT monitor, LED light or other accessories. Its one side connects the monitor; other side connects your DSLR camera or other big camorder to achieve real-time video/image showed on big screen, or one side connected LED light, other side connected DSLR camera or other big camorder to get good light effect. With 15mm rod clamp, this magic arm can be installed on DSLR/DV Support Rig so that mount more devices such as monitor, flashes, led light etc on the rig to provide advantage to photographer- Very good for mounting monitor onto DSLR Camera. Easy to install, each joint is adjustable- Lock system is very tight- Regulated to any angle in three-dimension, very useful!