About This

• 【High Binding Capacity】Binds up to 185 sheets of 20# paper. Binding capacity varies by margin setting and paper thickness: up to 185 sheets at a 2.5mm margin, 175 sheets at a 3.5mm margin, and 165 sheets at a 4.5mm margin.
• 【Black Finish】The black finish provides a clean and classic look, suitable for reports, manuals, proposals, presentations, and business documents.
• 【50 Pieces per Pack】Includes 50 black wire binding spines, providing a convenient supply for office, school, and business binding projects.
• 【2:1 Pitch Design】Features a 2:1 pitch layout for use with standard 2:1 wire binding machines, helping create clean and organized bound documents.
• 【21 Loop Binding Wires】Each spine is designed with 21 loops for Letter size paper, making it suitable for common office, school, and business document formats.
• 【Letter Size Compatible】The approximately 11-inch length fits Letter size documents and can be trimmed after binding for smaller paper formats when needed.
• 【Double Loop Wire Structure】The double loop wire design helps keep pages aligned while allowing smooth page turning for reading, copying, and document handling.
• 【Professional Document Use】Suitable for reports, manuals, proposals, presentations, training materials, notebooks, and other everyday binding projects.
• 【Compatible with Rayson Binding Machines】Works with Rayson TD-1222 and other compatible 2:1 wire binding machines for reliable document finishing.