This is an professional 11""artictulating arm * It is perfect for mounting your hd monitor, led video lights to DSLR hot shoe * Durable construction with a locking control knob to release or engage the tension, this articulating arm simplifies the mounting, placement and adjusting any on-camera lighting and other accessories. * Ergonomic design, one knob locks all postions. * It comes with the shoe mount and it fits directctly on your camera shoe mount.