This is a cap that can be used for magic tricks, such as making a card appear inside a plastic bottle, before the seal is broken. Prepare by purchasing a plastic bottle beverage and removing all the caps with a cutter, etc. → Have someone sign a playing card and secretly put it inside the plastic bottle → Attach this cap in the same way you would close a regular cap → You can perform the trick as if the signed card is inside a brand-new, unopened bottle of tea. Of course, when the customer opens the cap, it will make the "snap" sound of a new bottle being opened. Plain caps of a similar design are also sold, but the ones that look like commercially available ones are more convincing. *Price is per cap. If you want additional caps, it's +400 yen per cap. *The basic design is as shown in the image, but the expiration date markings may vary. *Some caps may have a partially cut seal, but we will send you ones that are perfectly usable for magic tricks and are not defective. Please understand that there may be some minor dirt from normal storage. *The product is only the special cap. Images 2 and 3 are reference images. Please prepare the plastic bottle itself. *This is only a magic item, and its use is at the customer's own risk. Please refrain from using it for any other purpose or in a way that violates the law. Please purchase after understanding the above.