Squeezing and rolling pieces of therapy putty - Mirror therapy

Sit with your hands supported on a table in front of you.
Stand a mirror between your hands with the reflective surface facing your unaffected hand.
When ready, roll a piece of therapy putty into a ball using the fingers of your unaffected hand.
Then squeeze the ball and repeat.
Whilst performing the exercise look into the mirror and visualize the reflection of your unaffected hand as the affected hand.