TetherBLOCK MC is made from a single block of hi-grade aircraft aluminum with black anodized finish. The cable channels are machined in the solid block and can secure HDMI, FireWire, and the thinnest USB data cables available. TetherBLOCK fits beneath your camera to prevent unwanted movement and damage to your camera data port connection. Non-slip pads and a stainless steel screw secure the camera mounting. TetherBLOCK MC has 1/4″ and 3/8″ threads for mounting on your tripod or attachment of your favorite quick release plate or for specialty camera rigging. Two additional 1/4-20 threads are designed for specialty camera rigging or securing camera and video accessories. Weighs only 2.5 oz (71g)