Features CUSTOM PERFORATION: The scale line attached to the ruler table can accurately locate the edge position of the paper A4, A5, B5. A4 30 holes, A5 20 holes and B5 26 holes can be punched according to demand. After mastering the use of the method, you can customize the number of holes, DIY drilling. WIDELY USED - The 10 hole loose leaf punch is suitable for binding A4, B5, A5, A7, B4, 20, 26, 30 holes or more porous loose sheets, ledger books, etc. DURABLE & NON-SLIP - Paper spiral binding machine has a fully metal lacquered body for sturdy durability. The folding plastic tray collects paper scraps, is non-slip and protects the table surface. 10 SHEETS CAPACITY: The paper binder can penetrate up to 10 sheets (70g) of paper with a diameter of 5.5mm and a hole spacing of 9.5mm. PRECISE DRILLING: Both sides of the punch have positioning posts and rulers, which can easily determine the position of the punch. Specification: Item Type: Paper Binding Machine Color: Light Blue Hole distance: approx. 9.5mm/0.37inch Hole diameter: approx. 5.5mm/0.22inch Feed depth: approx. 7 mm / 0.28 inches. Application: A4, B5, A5, A7, A6 etc. (maximum thickness of 10 sheets (70g)) Package List: 1 Host 2 x Accessories Package List 1 x Host 2 x Accessories