Head-Worn Magnifier Power 2x 3x 5x 6x Diopter 2x/3x/5x/6x Power Focal Distance 2.0 in Lens Diameter 88 mm/26 mm Battery Size 3 AAA (Not Included) Case Not Applicable Features LED Light Fully Adjustable Hands Free Includes Adjustable Head Strap Lens Acrylic Overall Length 10.4 in