Specifications: Product Name:PAPER-CUTTING The paper-cutting knife is an ideal and essential cutting tool for various paper,photo,art card paper and cold mount paper etc,It adopts the automatic paper weight design.The knife-edge has been especially treated,which is sharp and durable.The products after cutting are clean and tidy and have no any burr.The products contain the iron disc and wood disc,various specifications(6 inch-21 inch)