Optical Trial Lens Set I Metal Rim Optometry Kit Case with Free Test Trial Frame I 260Pieces

★ Optometry case can always keep lenses' clearness and transparency, while wooden case will fog lenses in influence of chemical glue after a period of time.
★ Set of 266 trial lenses, of accurate power degrees perfect outlook clearly on both sides of each handle.
★ Trial lens set with metal rims, suitable for MRI or environments requiring non-magnetic supplies/equipment.