GD-3 The 3" Inch 3x Glass Dome Magnifier is one of the easiest magnifiers to use, a dome magnifier is ideal for magnifying newspapers, charts, paperwork, books, financial and accounting statements and documents. Simply place the Glass Dome magnifier on the surface and glide across to easily view with 3x magnification.
A 3" provides a small-medium magnifying area is large enough to magnify specific hard to read areas on documents, technical plans, marine charts, architectural plans, and geological maps. Unlike others Glass Domes ours has a metal side and edge rim to help prevent cracking and chipping which is a common problem with glass domes.

• - Lens Power/Magnification -3x
• - Lens Diameter 3" Inch
• - Lens Diopter -12
• - Lens Focal Length 0 Fixed Focused