Bright white LED illumination to reduce eye strain in low light and increase battery life. Crystal clear acrylic lens provides sharp, distortion-free optics throughout the entire viewing area. 2X magnification with 4X inset helps with reading, detailed inspection and hobbies. Rectangular. Magnifier Type: Rectangular Handheld; Lens Magnification: 2X; Lens Material: Acrylic; Lens Width: 4".