The EZGP mount is one of the most intricate products we have ever come out with. There is a great deal of machining that goes into these pieces. The camera mounts are precisely machined from 6061-T6 & 7075-T6 aerospace grade aluminum. We machine these to very tight tolerances to ensure every assembly fits perfect and won’t fail. We also use the best hardware because we don’t want rust or anything that could compromise the ability of the user to use the piece to its full potential. SPECIAL NOTE: "Aluminum" Gopro housing recommended, original plastic case is known to break from vibration, available on Amazon.