Hard Sudoku puzzle books vol. 1: Hard, Very Hard and Extremely Hard Sudoku - Total 300 Sudoku puzzles to solve - Includes solutions (Hard to extreme)
| Country | USA |
| Binding | Apparel |
| Brand | ZIOOER |
| Department | womens |
| Feature | Materail: ABS, safe, non-toxic and odourless |
| IsAdultProduct | 1 |
| Label | ZIOOER |
| Manufacturer | ZIOOER |
| Model | ZIOOER-DDSK-01 |
| MPN | ZIOOER-DDSK-01 |
| PartNumber | ZIOOER-DDSK-01 |
| Publisher | ZIOOER |
| Studio | ZIOOER |
| ReleaseDate | 0000-00-00 |