6pcs A5 3-Hole D-Ring Binder Mechanisms Metal Replacement

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:...