Having trouble building Forearm size.

[KeyMastur]

Thanks for all the help and replies guys. I forgot to add in I find it difficult to build mass because my forearms are so long. What weight do you think would be ideal to start out with for both palm up and down?

whatever weight you can do ??? i dunno. ha. i start off with one "warm-up" set with just the bar, then add a plate (yes, a 45) to each side and do a few sets of 8.