Double Concave Lens, 300mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms - Eisco Labs
| Country | USA |
| Brand | MITUKIYOUNG |
| Manufacturer | DONGYANG TIANYI TECHNOLOGY CO., LTD |
| Binding | Misc. |
| Model | MSWJ620E |
| Color | Black |
| Size | portable |
| UnitCount | 2 |
| ReleaseDate | 0000-00-00 |