you should start doing the
newbie routine first with jelqing and stretching before get any of these equipment.
i am telling you that because 1)you need to make your penis stronger and in better condition before you start using
bm or
sg
2)no matter what equipment you use you have to do manual excersise too to gain.so by doing the
newbie routine you will find out in which section(length or girth) you need a help with one of these product in combination what are you looking for.