6pcs A5 3-Hole D-Ring Binder Mechanisms Metal Replacement for DIY Scrapbook Upgrade DIY binders with 6 metal A5 3-hole D-ring mechanisms, sizes 16-50mm, easy install.(210x26x50mm)

• Premium Solid Raw Material: Made of durable smooth material with uniform texture, this binder mechanism delivers stable clamping structure for long-term notebook and planner use
• Smooth Opening Ring Design: Features flexible ring structure to open and close effortlessly. The evenly aligned rings allow convenient insertion and removal of loose leaf papers
• User-Friendly Notebook Craft Operation: The mechanism can be mounted manually onto notebook covers. Ideal for creating custom journals, planners and loose-leaf notebooks
• Multi-Purpose Versatility: Practical hardware for personal planners, study notebooks, sketchbooks and office filing books. Suitable for hobby creators and stationery production projects
• Organized Compact Structure: Standard flat assembly supports neat storage. Spare binder mechanisms can be sorted neatly inside storage boxes for future crafting work

Exquisite Precision Forming Craftsmanship: Built with smooth ring edges to prevent paper tearing. Stable locking structure keeps pages securely bound during daily carrying and reading
Size(L*W*H): 210x20x24.8/210x20x30.8/210x20x35.8/210x26x42/210x26x50/210x26x63mm;
D-Ring Inner Height: 16mm/20mm/25mm/30mm/38mm/50mm;
Recommend Paper Size: A5;
Material: Metal;
Quantity: 6pcs

Note:
1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight manual measurement deviation for the data.