Currency
GBP - British Pound

Start Position

Mid-Position
If you experience wrist discomfort performing Wrist Curls on a straight bar, either EZ Bar Wrist Curls (shown) or Dumbbell Wrist Curls are a good alternative. Better-still, you should consider the purchase of GLOBE GRIPZ™.
Seeing the forearm flexors in action on these images provide a really good insight in to how the forearms perform to control wrist movement.