1.Paper puncher is with independently cast metal blade for edge, which is durable.<br> 2.Ruler comes with graduation marks to accurately position the edge of A4, A5, B5 paper.<br> 3.There are movable positioning columns on both sides of the fuselage to assist in positioning the future drilling hole distance.<br> 4.Suitable for binding A4 (30 holes), B5 (26 holes), A5 (20 holes) binding loose-leaf handbooks, etc. Also this paper puncher is fit for DIY binding for up to 5 sheets of 70g paper each time.<br> 5.A scrap box is attached at the bottom, which is convenient for storing punched scraps.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store