Can't Add Size to Your Biceps Question

Can you plase explain for me what this is? its from " Can’t Add Size to Your Biceps?
Try Working the Forearms!
By Charles Poliquin"

Palms up wrist rollers for 60 seconds of work. Keep rolling up the weight and lowering the weight as quickly as possible for 60 seconds.

Thanks my english is not that good;)

Here is a wrist roller: www.cyberpump.com/ herk/herknew3.jpg I guess palms up means, uh, palms up.

i could not find thie pic!! please post another one if you got! thanks

You need to remove the space in the link.