The 65mm capacity (90mm spine width) 4D-ring binder is truly a jumbo binder. I've inserted plastic pockets to hold A4 sheets and cuttings, so this whole assembly becomes quite heavy. Tabbed (extra-wide) subject dividers (not supplied) do not protrude beyond the edges of the sturdy plastic-covered boards. When full to capacity, turning over a big section of leaves, or going right to the far end is not a quick process, but secure if done carefully. If creating a large project, consider whether you go for a single very wide binder, or maybe two narrower ones. There are customisable front, spine and back pockets to insert your own cover sheets and titles, although slipping them in - best with the binder folded out - can be a bit tricky, especially with thin paper, so light card would be easier to insert. The height is approx 32cm, so check if it will fit into your bookshelf. Width 30cm; spine 9cm.This folder is very robust and durable, especially for the price. It's filled to the brim with cattle paperwork that previously filled two smaller folders. The inner plastic pocket is really handy for storing my to do lists and post it's. Only problem is now I've run out of space, so at some point will be buying a second and will have to split the cows into the two herds. The only concern I have it due to its current weight, it's probably putting extra stress on the clips, so I've been careful when using it to prevent accidental damageImpossible to get the paper label out of the spine to re-label it. It is welded into the seam at the bottom where I can't reach. I've ruined the spine trying to get it out and also my palette knife which I slid in to try to loosen it. With other folders, I've used the original label hundreds of times before by just sliding it out and using the reverse. They have usually been card though. So annoying and frustrating! I can't return it now because the clear plastic is ripped. I can't stand the sight of it!Don't waste your money.I'm not sure where these Ring Binders have been stored, but the one I recently received was filthy. It looked like it might be dust or some sort of liquid spillage that had dried out. I gave the folder a good wipe down and then carried on using it. Not good though. Not good right now in the middle of a pandemic. Cleanliness is next to Godliness.I prefer 4 ring binders to store paper work as there is far less tendency for the paper to slump when placed on a shelf for storage, but they are seriously over priced by virtue of being called a presentation folder rather than a 4 ring binder! have purchased loads of these over the years and so far only managed to break one. The ring bindings do not always line up properly so making turning pages awkward, but this can generally be corrected by careful bending of the rings.