The QR code on the back is unused. ✼••┈┈••✼ About the Product ✼••┈┈••✼ There may be scratches or stains not visible in the photos. Please refrain from purchasing if you tend to make claims, give negative evaluations, or seek perfection. ✼••┈┈••✼ Shipping ✼••┈┈••✼ When shipping, the item will be placed in a bag for waterproofing. If you have any requests regarding packaging, please let me know in the comments section before purchasing. Please understand that the arrival of the product may be delayed due to the effects of the coronavirus. ✼••┈┈••✼ Notes ✼••┈┈••✼ Please purchase after carefully reviewing the contents. If you have any questions, please feel free to ask. I will take care to package the item carefully, but please understand that it may be damaged during transportation. Please also read the profile section to prevent any trouble.