enduro7

Hi everyone, I have an inquiry regarding a special ball making turning rod. It is used to turn leather balls the right side when constructing. I believe it is called a turning rod or a rounding iron and it is basically a metal pole with 4 groves on top and you put the seams of the ball into it to turn the ball the right way out. Really hoping someone knows what they are called and where I can possibly get one from. Thank you for your help.