| 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 | 
 
                 
                     
                     
                    