"I always feel like somebody's watchin' meeee~" And that's because someone is! It's the Beholder in your dice set. His gaze follows you no matter how you turn each die. But don't worry, I'm sure he's friendly. He may be missing three of his eyes, but seven eyes are still better than two! Definitely worthy of advantage on all your perception checks. 

This is is a liquid core dice set. The eyes really will move as you turn and roll each die. This dice set is larger than standard. The d4 in this set is of a unique shape.