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Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
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Fresnel lenses are great as reading aids, magnifiers or for use in DIY projection projects, emergency fire starter. This lens is great for reading fine print in books, magazines, menus, maps, telephone directories, etc. Makes a great gift for those who need a visual aid. They can also be used for light duty solar such as heating water and solar furnace projects and more.
Size: 180mm X 260mm ( 7" X 10" Magnifier)
Thickness: 0.40mm
Material: PVC
Groove pitch: 0.30mm
Focal length: 300mm