This wrist positioner is designed for medium to heavy oil, and the longer extension design supports the fingers to produce more forward roll and less skid. The straight wrist position like, the Z-Loc 2 with extended steel finger support for maximum lift. Easy to remove between frames. The consistent arm, wrist and hand position helps bowlers suffering from wrist pain maintain a consistent release.
Ithrew a more consistent first ball and found I could also pick up spares withought taking it off.