These are Allstate and Avery Style Legal tabs. First, the difference between Allstate and Avery is a variation of the same font. Allstate is plain helvetica, and basically all grammatical rules apply. But with Avery, the text is all caps and the font is bold. They are a lighter paper compared to normal index tabs, with a thickness of 80lb. Compared to the normal 20lb printer paper, it's still going to be thicker. On each is a clear mylar coating, making them a little more durable and it gives the tabs a slight sheen. You can find a huge variety of options including: Numbers from 1 to 2000. Different Variations of letters from A to Z. Exhibit Tabs, Roman Numerals, References, and blank tabs. The tabs are displayed on the side, or even on the bottom. Collated tabs come packaged in order - so if you get A-Z, then A will be on the top, Z on the bottom, and everything else in between. Or you can get the tabs uncollated: purchasing several of the same tab. Now, when you buy uncollated tabs, each tab is in a standardized position. So for example, if you buy an A tab it will be in the A position - and the B tab will be in the B position. The tab labels are printed on both sides, so you can easily search you pages forwards or backwards.