Heidi Swapp-Lightbox Mini: White. Use to display messages in your home, office, dorm and more! The Lightbox is perfect for parties, events and classroom displays. This 6-1/2x6-1/2x2 inch package contains one lightbox mini and one USB cord. Battery option requires three AA batteries (not included). WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. Imported.