Versatile Punching Capability: This mini 5-hole punch is designed to support 20, 26, and 30 hole punching, making it perfect for a variety of binding tasks. Optimal Hole Size: Features a standard hole diameter of 5.5mm, ideal for most binding requirements. Suitable for Multiple Notebook Sizes: Compatible with A4, A5, and B5 , ensuring a wide range of use. Compact and Portable: Its small size makes it easy to store and perfect for on-the-go professionals and students. Easy Operation: Designed for simplicity, it provides a hassle-free punching experience. Color:As Shown Material:ABS Package Contents: 1 * small 5-hole paper 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.