Aria Simple, sturdy, & easy to use, but can’t write on back - I really like these tabs! Although they have a few limitations (noted below), they’re well made and really easy to use. Pros: -They’re VERY easy to remove and reuse. I took them off and put them back on at least a dozen times during “installation” (so I could make sure the tabs lined up properly with the page and with one another). I had no problems removing them and there was no damage to the tabs or to the page. -The tabs are very “sturdy” and feel well made; they’re hardy enough to support the weight of the pages when you use them to turn to a section of a book. -Writing on the front side of the tabs stays in place without smearing. (I used a Paper Mate felt-tip pen, not a sharpie, but the writing still stayed in place.) -You get plenty of tabs in each package. I had enough to tab 2 books with 5-6 tabs on each, and I still had plenty left over. -The tab size is perfect; they’re big enough to write on comfortably without having to do micro-writing, but small enough that you can fit (and view) multiple tabs even on a small book. Cons: -You can only write on the front side of the tab; the texture of the tab backing is such that writing on it causes the writing to “shrivel” and come off. So in practical terms, you can’t stick a tab to the left side of a page because the backside of the tab then faces forward, and you can’t write on it. (See photo.) -You only get 4 colors.