SMALLRIG Black Aluminum Alloy 15mm Rod - 10cm 4 Inch (Pair Pack) SmallRig 15mm rods (10cm/4inch) are two tube that connect the camera, and the filmmaking equipment accessories, such as microphone, LED, EVF mount, etc. 15mm standard tubeThe diameter of rods is industrial 15mm standard. It is compatible with any accessories with standard 15mm rod holes, such as camera handles with 15mm hole, rod clamp, etc. M12 inner threadThere is a inner M12 thread on each end of a rod, so that you can 1) use M12 threaded connecter (SmallRig 900) to extend the rod 2) use M12 rod end cap (SmallRig 1617) to prevent your accessories from sliding from rods. High-qualityMade of 601 aluminium alloy, well finished and precise CNC processing, very strong and durable. Product InformationPackage included : 2 x 15mm rod (10cm/4 inch); Weight: 25g/pcs; Material(s): Aluminium Alloy.