Muscle Group: Forearms
Here we thicken the flexor muscles of the forearms.
Grab a pair of dumbbells and take a seat on the edge of a bench. With your palms up, rest your wrists on the edge of your knees. Your right wrist on your right knee and left on the left knee. Allow the dumbbells to be lowered all the way down so that you feel a stretch in your flexors.
Now curl the dumbbells in unison upward, flexing your forearms muscles as hard as possible. Now slowly release and bring to the starting position. Continue until the set is complete.