Carson optical: lt-80 metal linentest magnifier.This linentest magnifier features a 5x power 30mm glass lens that measures one inch in diameter.It has sturdy metal frame with markings in both inches (1×1) and millimeters (25×25) to easily measures small items.It has a folding design that allows it to stand on its own for hands-free use, then fold flat for compact storage.When open it measures 1.75×2.25×2.25 inches, and when gffolded up it measures 1.75x 2.25x.675 inches.A soft vinyl storage pouch with a hook-and-loop closure is also included.Complete package contents include one linentest magnifier and a soft pouch to protect from damage when not in use.