Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier Loupe. The MagniVisor 2x / 3x Dual Power Magnifier MV23 by Carson has an adjustable headband that will fit any size head. These Carson Magnifiers are great for hobbies and crafts that require the use of both hands. Specifications for Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier MV-23: Magnification: 2x power w/ 3x flip-down lens Dimensions: 8.0" x 6.5" x 2.5" Weight: 4.0 ounces / 100 grams Package Contents: Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier MV-23 Specifications for Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier Loupe MV-23: Manufacturer: Carson Magnification: 2 x 3 x Color: Black Magnification Type: Fixed Overall Length: 7.1 in Quantity: 1 Features of Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier Loupe MV-23 Magnification 2x /3x Package Contents: Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier Loupe MV-23 Carson MagniVisor 2x / 3x Dual Power Flip-Up Head Mounted Magnifier MV-23