What I Know Now: Letters to My Younger Self
| Country | USA |
| Brand | Hsefo |
| Manufacturer | Hsefo |
| Binding | Electronics |
| ItemPartNumber | FO1022A-16 Promax-kaituo-hei-1K |
| Model | FO1022A-16 Promax-kaituo-hei-1K |
| Color | Black |
| Size | For iPhone 16 Pro Max |
| ReleaseDate | 0000-00-00 |