Made of alloy and ABS, this compact device can punch up to 3 sheets of paper at a time (paper thickness: 80g or less, equivalent to 20lb or less), and the construction ensures reliability and long-lasting performance for your binding needs. The package includes 2 spiral binding combs in 2 styles and 20 binding rings in 5 bright colors, approximately 0.47 inches (12 mm) in diameter. Each ring can hold up to 80 sheets, allowing you to organize color-coordinated notes or personalize your work and study materials. The device accommodates various paper sizes, including Letter, A4, and A5, offering flexibility based on your needs. Accurate positioning and efficient binding: The machine features 2 precise alignment posts to ensure consistent hole placement, simplifying the binding process and improving efficiency when preparing reports or organizing notes. Portable and easy to clean: The compact hole punch is designed for portability, with built-in hanging holes and a bottom waste bin that is easy to empty and clean, making it a practical addition to your office supplies. Unleash your creativity: Easily create custom bound documents with this binder punch machine, ideal for both personal and professional use. Color: White & Green Material: Plastic Package Contents: 2 x Book binder machines 20 x Loose leaf binding strips (randomly assorted colors, no color selection available) Note: Light reflection and differences in display settings may cause slight variations between the color shown in the image and the actual item. Measurement may vary by +/- 1-3 cm.