forearms

A unique advantage of this exercise over other triceps extension variations is the use of cuffs rather than a hand-held attachment.
Science says grip strength might even be more important than just for gaining serious pull-up prowess.
Your biceps might look good from the side, but that's no good if they look skinny from the front.
Hammering your grip may not be the answer to getting a tighter hold on your opponent.
The forearms and wrists allow us to perform the exercises that develop and maximize biceps, triceps, deltoid, chest, and back strength.