Are the labeled sizes of ring binders the actual thickness of the binder? Nope. The labeled size is measured in two main ways. For ROUND ring binders, they are measured by the diameter of the ring. For SLANT/D ring binders, it is the measurement of the straight edge of the ring. At the end of the video, see an approximate actual thicknesses for some common labeled ring sizes. Check out all our ring binder options on our site: http://www.mybinding.com/binding/ring-binders.html
One Touch™ Locking D rings open with ease and keep pages secure. D Rings hold up to 50% more than same size round rings. Gap Free™ ring prevents gapping and misalignment of rings. Wide front and back binder panels fully cover standard dividers and sheet protectors. Made with 100% recycled chipboard. Cover material is PVC-free polypropylene.