Product describition Retinoscopy Rack Lens set (2 pieces)
Model: RR-2
CE & FDA approved
Diopter: +/- 0.5,1.0,1.5,2.0,2.5,3.0,3.5,4.0,4.5,5.0,5.5,6.0, 6.5,7.0,8.0,12
Material: Plastic racks, glass lenses
If you want the aluminum case to install them,you should pay for it.
Here under photos
Terms and conditions: Payment: T/T in advance.
Shipment: Within 5 working days after receipting the payment. Warranty: 1 year.
Audited Supplier 
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