Grandpa's Birthday Sudoku Challenge: Can Grandpa do 50 hard puzzles in 50 days? Hmm...
| Country | USA |
| Brand | Haoyull |
| Manufacturer | Haoyull |
| ItemPartNumber | Haoyull |
| Color | As the Picture Shows |
| Size | 13*8*4cm |
| UnitCount | 1 |
| EANs | 7647560549889 |
| ReleaseDate | 0000-00-00 |