Bold, educational, and built for everyday use — a 15 oz ceramic mug printed front-to-back with famous equations that have shaped science and history. Designed to delight curious kids and grown-ups who love STEM, this sturdy dishwasher- and microwave-safe mug makes a smart gift or classroom treat that encourages learning through play. Made-to-order and shipped responsibly (carbon-neutral shipping, compostable packaging), it’s a practical, inspirational piece for a playroom, study corner, or morning routine. Care: dishwasher & microwave safe. Volume: 15 oz. Material: ceramic. Returns accepted within 30 days.