Portable 3-hole paper punch. These 3-hole punchers provide reliable performance and our metal designs deliver superior performance. They come in various translucent colors. Actual colors may vary. Can punch up to three sheets of standard 20 Lb. paper at a time. The punch produces 1/4-inch holes that cut crisply and cleanly, which accommodates most binding devices. Save space with our flat 3-hole puncher that features 2 hanging holes designed to fit most standard 3-ring binders. Keeps students organized without weighing their backpacks down. Not only is this a three-hole puncher but it also includes a built-in 10-inch ruler and a built-in paper guide. Double function makes your work easy and efficient. Ideal for school, home and office. Perfect for elementary, middle and high school kids. It is very slim and has a smooth grip for an easy squeeze, even for small students.