Work Your Weaknesses Month (Wrist Work)

I've been doing some extra abdominal and wrist work this month, trying to bring up those weaknesses. One of the tools I use for wrists is the "Twist Yo' Wrist" wrist roller from Ironmind. It differs from a standard wrist roller in that it works radial and ulnar wrist extension which are the motions you make when you are opening a jar, or twisting a door knob. It is basically a very big yo-yo that you can attach weight to.