Premier Products - Premier - The Original Green Paper Trimmer, 20 Sheets, Wood Base, 19 1/8" x 21 1/8" - Sold As 1 Each - The original and still a favorite! - Through-hardened, self-sharpening, high-carbon steel blade. - Patented automatic locking blade latch. - Finger guard runs entire length of blade. - Torsion spring prevents blade from falling. The original and still a favorite! Through-hardened, self-sharpening, high-carbon steel blade. Patented automatic locking blade latch. Finger guard runs entire length of blade. Torsion spring prevents blade from falling.