Sit at the corner of a table holding a weight in one hand with your elbow bent to 90 degrees.
Support your elbow on the table with your hand pointing upwards.
Place a small towel or ball under your elbow for comfort if needed.
Slowly lower the weight towards the floor in the direction of your opposite side knee.
Then take the weight using your opposite hand and return to the starting position.
Place the weight back to the and you are exercising and repeat.