Gracallet 4 Pcs Assorted Color World's Most Efficient Handheld Letter Opener Envelope Slitter with Concealed Blade (4 pcs assorted color) Simple, safe and efficient tool for opening letters, envelopes & packages. Insert blunt-tipped guide under envelope flap at corner and slide cutter along edge. Recessed safety razor slits top edge of flap, reduces risk of accidentally cutting contents. Stainless blade stays razor-sharp through hundreds of cuts. Package included: 4 pcs assorted color letter opener (color at random)