Extremely light and comfortable, the Task-Vision Clip-On Loupes with aspheric lenses (distortion-free) are available in 3 styles—bifocal, full lenses, and large full lenses—that attach to your prescription, safety, or laser safety glasses and add magnification of 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 5.0. For more information, call (800) 257-5782 or visit the Web site visionusasupplies.com.