This 3-in-1 magnifier ruler plastic letter opener features an internal metal blade for safe, clean mail opening. Its one-piece hard plastic body integrates a magnifier window for reading small print and fine details, plus a printed ruler scale for daily office measuring tasks. With a slim card-style design, it is lightweight and compact at 4.1 x 2.95 x 0.65 inches, easily fitting into pockets, wallets or desk drawers. The concealed safety blade also supports quick line marking, while the magnifier clarifies tiny text and delicate details. Fully customizable with logos or slogans for schools, teams and organizations, it is ideal for office use, student stationery sets, business gifts, portable use and branded corporate giveaways.