These helped me out a ton, I rotate the single arm pulleys with the regular straight short bar (not ez bar) . The wrist motion he talks about is what really helps, Once I started doing these within 2 weeks i had somoene commenting on my forearms. Before these I didnt really care about forearms and only did those wrist curl things after biceps. I now love how my forearms look and obsess over them ,lol
http://www.youtube.com/user/DanteDC#p/u/4/nf3k-EmaCGc