Paper trimmer delivers consistently straight and clean 12" cuts. Cut-line indicator shows you exactly where the blade will cut to ensure perfect placement and results. TripleTrack blade and rail system interlock the blade and rail for increased precision. Wide base with a self-leveling, swing-out arm provides a better way to make extended measurements. Rail lock secures the rail for safe transportation. Paper clamp features a smudge guard to hold your papers or photos in place without getting fingerprints on your items.