It wasn't until a few years ago that I had finally used one of these - surprisingly enough you could say. But that's simply because of myself not really having to utilize highlighters for school work, writings, and whatnot - in other words, I never really found highlighters to be of any useful use, but that's where I went wrong. Ever since I've started using these that, not to mention, do indeed assure you top-notch quality, I've actually been able to remember key points, facts and such (or anything that I just felt like highlighting) within a piece of text as opposed to times whereas I would easily forget within hours - heck, in some cases, minutes or even seconds! As obvious as that may have sounded, it's just what's what as far as my own experience with highlighters is concerned.
These in particular are pretty comfortable and easy to use, thus putting the individual to become worry-free as far as "physical conditions", if you will. Not just that - these highlighters also come with the longetivity of ink supply, so as far as having to run back and forth to your local office supplies store - let's put it this way: it's merely a thing of the past, and now, you'll soon realize that these are indeed ones that you shouldn't be without, or even overall among writing tools. Without a doubt, using these highlighters that are far superior than the competition have definitely played a major role in boosting up my studies, given how much I can now remember, say for 'skimming' purposes - you highlight this and that, and in the end, you'll only need to remember the essential stuff. No more needing to remember a whole bunch of things that will put you to find yourself going crazy since you've just found out that those little details proved unnecessary (for example, this is the case with exams, tests and such). If you already haven't got a hold of these, then tell me, what exactly is it that you're waiting for?