Portable and suitable design: Size approximately 18.11 x 3.54 x 3.15 inches / 460 x 90 x 80 mm, our paper binding machine is comfortable to install on many desktops without taking up too much space; it flaunts the compact size for easy storage, making it a great companion for your workspace. Widely applicable: The screw binding machine is suitable for punching holes A4, A5, A6, A7, B5 and B7, which is a good addition to many workspaces; 1 A4 sheet can punch 30 holes; this product can meet most of your needs. Professional ability: There are positioning columns and rulers on both sides of the book binder, which facilitates you to determine the drilling position; the ultra-precise drilling ability can perfect the files you bind and give them professional appeal. Easy to use: Our spiral hole puncher is designed with a hand push and is very easy to use; you can make the right hole with just a light move; it is a great companion for hand books and offices. materials: the binding machine adopts plastic design to that the accessories are strong and can be used for a long time; the product materials are light and easy to carry Our binding tool can hold up to 5 sheets of paper at a time, and the punching is also very precise, suitable for use as office supplies. This binding machine is suitable for many types of paper. Whether you are assembling reports, crafts or other materials, our equipment can meet most of your requirements and is a great tool. Colour:As Shown Material:plastic Package Contents: 1 x Desktop Binding Punch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.