The TriView magnifier from Carson is a compact, portable folding loupe magnifier that range in power from 3x-5.5x-8.5x (TV-36) as well as 5x-10x-15x (TV-15) power magnifications.Each lens in the TV-36 contains a roughly 3x magnification (rounded to the nearest half power).Combine two lenses together to make 5.5x power magnification, or three to make 8.5x power.Each lens in the TV-15 option contains a 5x power magnification.Combine two lenses in the TV-15 to make 10x power magnification or 3 lenses for 15x power magnification.The TriView Magnifier is lightweight, portable and comes in its own protective case.The TriView loupe magnifiers are great for inspection of coins, stamps, jewellery, printing pixels, currency, model building, photography, nature, hobbies, crafts, tasks and more.At Carson, we strive to make sure our customers are 100 Percent 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.