KW-trio Disc Binding Ring 20mm Ring Diameter 8-Holes Ruler Fixture Accessories DIY T Mushroom Hole Loose Leaf A5 Notebook Notepad Binder for Travel Office Home School Students

Features:
You can use the ruler to measure the distance or draw a straight line(Has a centimeter and inch marking). It also can be used as a bookmark.
Different ring sizes to suit different thicknesses. 8 Holes ruler fixture is suitable for A5 size paper, 20mm ring diameter can hold 80 sheets paper.
With this binding ruler fixture, the paper can be combined at will, and can be increased or decreased at will, very flexible.
It is very tight and firm in use and will not fall easily. This is a good choice for everyday notebook binding. Notebook can be folded at 360 degrees.
The use of this product may also require a mushroom hole puncher, it can punch paper and then bind the paper with these ring.
The binding rings can be used with TO NOTE notebook, add sheets to your TO NOTE, very convenient to use. Perfect for students, office workers, travelers, designer, etc.