The Defender's Duty (Sinclair Brothers, Book 3)
| Country | USA |
| Brand | Tingjoo |
| Manufacturer | Tingjoo |
| Binding | Electronics |
| ItemPartNumber | TET-Tingjoo-0626 |
| Model | TET-Tingjoo-0626 |
| Color | Brown and Black |
| Size | 4 x 1.65 ft, 5 x 2.1 ft, 6 x 2.6 ft |
| UnitCount | 3 |
| ReleaseDate | 0000-00-00 |