THE MONSTERS Big into Energy Series Plushie Pendant Serenity Just arrived today, in excellent condition. This is a guaranteed authentic item purchased from Pop Mart Online. If you wish, I can send you a screenshot of the numbered authenticity certificate after purchase. I opened the box to check the item, but it has not been taken out or used otherwise. The box will be folded for shipping. As this is a guaranteed authentic item, returns and exchanges are not accepted.