Big into Energy Series - Blind Box Unleash the power! Discover a unique figure from the exciting Big into Energy Series. Blind boxes come in a collection of 6 items, concealing its contents until opened. Each box typically contains one item with a color, and the excitement lies in the surprise of not knowing which color you will receive. One hidden/ secret toy is usually included in a blind box toy series as well, but they are only included randomly in certain sets. There is no guarantee of receiving a secret toy even if you purchase a whole toy set.