I just recieved my two moulds from NOE they made a mistake and sent me aluminum moulds instead of brass like I ordered. I called them they answered right away said they hate that when that happens we will get a brass mould sent your way asap btw keep the ones you already recieved. Have not used the moulds yet but they seem to be of top quality. Definitely will be joining the $1000 club when more funds become availble. Great company great service.