This 3-point unit, also called Seven Tigers, is on the Bladder meridian. I love this point for neck and shoulder pain. Here's how you locate it.
Point 1 - 1.5 cun proximal to Bladder 60
Point 2 - 2 cun proximal to Point 1 (or 3.5 cun proximal to Bl 60)
Point 3 - 4 cun proximal to Point 1 (or 5.5 cun proximal to Bl 60)