SMALLRIG Aluminum Alloy Pair of 15mm Rods(M12-4inch) 1049 are useful and easy to extend various 15mm-compatible accessories to the camera rig with inner M12 thread at ends.The rods adopt highly reliable aluminum alloy, they have good abradability and anti-causticity, and more brighter and stronger than the original industry standard rods. The package, a well-made and natty cardboard box!The product is fit for the purpose for which it has been designed, and to be free from defects in materials and workmanship.