Fiskars 12-Inch Ultimate Craft Trimmer Transparent finger print guard protects photos and papers while trimming Self-leveling swing-out ruler with paper guide for more precise level measuring surface up to 13-1/2 Extended measuring surface with swing-out ruler which allows trimming from right and left hand alignments Trimmer also comes with 2 ez change rotary blade carriages-1 straight and 1 scoring-for easy switching of blades between cutting patterns