The Carson Clip and Flip is a flip-up, 2x power Magnifying Lens that turns any pair of regular glasses into a "flip-down" hands-free magnifier. This magnifying glass is a 2x power equivalent to a +4.00 diopters. It comes included with a pouch. Use your Clip and Flip Magnifying Lens for Fly-Tying or any other hobby or craft where you need two hands. At Carson, we strive to make sure our customers are 100% satisfied with the quality of our magnifiers. We are so confident in our magnifiers that we back them with a Lifetime Limited Warranty! Carson will repair or replace your magnifier if it is found to have manufacturing defects in materials or workmanship. Please contact Carson for additional warranty details.