Ledah Professional Metal Base Trimmer Blue (15 sheet)A Professional Trimmer pre printed with a grid on the table, features a ground circular blade that cuts in either direction. Excellent for home, classroom or office. With a ground, rotating upper blade, ground lower blade and an automatic clamp, they give a burr free cut . photographic studios, graphic design studios as well as advertising agencies, will find this Pro trimmer indispensable. Can also be wall mounted.