FY-6 Retinoscopy Rack, ±0.25 ~ ±5.00D, 6 rows
$
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| Specification: | |
| Size: | 220x40mm |
| Net weight: | 60g |
| Hole diameter: | 31mm |
| Degrees: | +0.50,+0.25,-0.25,-0.50 |
| Lens material: | Glass |

