The LensMag from the Carson HookUpz Collection is a 2 pack of high powered magnet magnifiers for the iPhone 5/5S/5C or Samsung Galaxy S4 smartphones. Included in each 2-pack is a 10x and 15x magnet macro lens magnifier. Simply remove the case from your iPhone 5/5S/5C or Samsung Galaxy S4 and place the desired high powered magnet magnifier over the camera. The LensMag will now act as a macro lens that will give you added magnification without the image resolution being pixelated at higher magnifications through the use of the built-in camera application on your iPhone 5/5S/5C or Samsung Galaxy S4 smartphones. The LensMag magnetically holds onto your iPhone 5/5S/5C or Samsung Galaxy S4 directly. We have found that in certain rare instances if you have a refurbished iPhone 5, where the ear speaker has been replaced, the LensMag will not work. This is due to the replacement ear speaker having weaker magnets with a reversed polarity. Also, in a small percentage of iPhone 5’s, Apple has being using an alternate ear speaker, most likely due to a component shortage. This alternate speaker also has weaker magnets with reversed polarity. Therefore, the magnets will not stick. We are sorry for the inconvenience and we already have a fix in place for the small percentage of situations where this may occur. If you do encounter this issue, please contact us directly at firstname.lastname@example.org and we will send you a replacement that will work with your iPhone 5/5S/5C. Please note that the optimal focusing distance differs between the 10x and 15x lenses. For the 10x lens, the optimal focal distance is approximately 0.75 Inch from your viewing subject. For the 15x lens, the optimal focal distance is approximately 0.5 Inch from your viewing subject. See detail you never thought possible with your Samsung Galaxy S4 or iPhone 5/5S/5C and the LensMag. At Carson, we strive to make sure our customers are 100% satisfied with the quality of our products. We are so confident in our products that we back them with a Limited Lifetime Warranty. Carson will repair or replace your Carson item if it is found to have manufacturing defects in materials or workmanship.