The Fish"n Grip Pro is a compact 4.5x power magnifier combined with a "3-in-1" fishing tool. Its crystal clear acrylic lens lets you see the finest details with ease. Built-in "Reverse-Action" tweezers, magnetic hook threader, handy hook-eye cleaner and built-in LED light makes this the "must have" tool for all fishing enthusiasts! The Fish"n Grip Pro was designed mainly for fly fishing and smaller hooks. The Fish"n Grip Pro comes complete with a protective, weather proof PVC pouch. Uses 3-SG3 Button Cell Batteries (included). 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.