The Dotpot 21 Hole High Volume Comb Binding Machine is a powerful and efficient binding solution designed for high-capacity document binding. This machine is specifically engineered to handle A4 size paper, making it ideal for offices, schools, and print shops that require the ability to bind large volumes of documents quickly and effectively. With a punching capacity of up to 20 sheets at once, it streamlines the binding process, allowing users to create professional-quality bound documents with ease. The 21-hole punching system accommodates various comb sizes, providing flexibility for different binding needs. Its robust construction ensures durability and reliability, making it a valuable addition to any workspace.