It was meant to 9 sets for forearms, they are a really sucky body part that hasnt developed that well even tho u use them all teh time.
I do 3 sets at end of each session of wrist curls or reverse curls,i think its slowly working.
OH and the sets i do for forearms arnt as intense or hard as arm sets. The sets of wrist curls etc r more of a finisher for forearms.
davie