Balance-disk exercise

I have a balance pad from Superstore and have had a hard time finding exercises for it.  I just found this is a great exercise to increase core stability and strength so I thought I would share with everyone!

Starting on your knees, place your forearms o the balance pad.  Look down at the floor.  Engage your core, and lift your knees off the floor, keeping your elbows directly underneath your shoulders.  Your body should be in a straight line.  Keep your core engaged and maintain normal breathing.  

Hold for 10-60 seconds, rest, then repeat the exercise if desired.