| Model NO. | ZK2/7-21X40 |
| Magnification | 7-21X40 |
| Function | Fogproof |
| Usage | Astronomical, Bird Watching/Hunting, Travel |
| Structure | Refractor Telescope |
| Lens | Glass |
| Objective Aperture | 30~50mm |
| Focusing Type | Center Focusing |
| Aperture | <50mm |
| Objective Diameter | 40mm |
| Field of View | 90m/1000m |
| Net Weight | 710g |
| Product Size | 156*180*60mm |
| Condition | New |
| Tripod Hole | Yes |
| Transport Package | Carton |
| Specification | 7-21X40 |
| Trademark | DONTOP |
| Origin | China |
| HS Code | 90051000 |
| Production Capacity | 2000 PCS Per Week |