2. The bottom of the box that look similar to cut and paste over the day / month / year. Because the box is old. The number of days / months / years, expiration date, box. He must take the day / month / year, new paste over. (the box it's old but the product is new) And he said the company orders each core box 5 ten thousands. piece box, and then there are many. But the product to produce new regularly).