KOKUYO Mark+ Two Colors Highlighter of Similar Shades, 5-Pack of Pink, Blue, Green, Purple, and Yellow, Japan Import (PM-MT100-5S)

I love this set of five, double-tipped highlighter pens, with ten shades in all - as each of the 4mm tips, features two different tones of the same colour. This is a great idea, and the fact that both nibs/ tips sit at an angle, adjacent to each other on the same end, does make it easier to alternate their use, than using one that has each tip at each end of the pen - however, you are at the same time, exposing to the air the tip you are possibly not using, as well as the one you are - time will tell, if this accelerates their drying out.I like how they feel in the hand, the barrel is very smooth - the data on it is printed, it's not a sticky label all the way around - I do prefer that, as I hate when it deteriorates, leaving sticky residue on your hand, as well as on other pens in the pencil case, but, what it also means is, that data can wear away/ off, with time & use. With them not being too chunky (13mm at the widest point), they're easy to handle - each barrel clearly denotes its colour, making for easy & quick selection.I love the colours - they are muted, without being washed out; the bolder shades, with perfect compliments of the lighter shades, makes for more creative categorising of text - I am already, much enjoying that about them in my journals. As the ink of these highlighters is water-based, I have found, that if you use them over fountain pen ink, that you wrote out hours ago, or, better still, yesterday, there is no bleeding/ smudging of the highlighter colour, or the pen's ink - but, if you use them too soon over fountain pen ink, you will get that bleeding - something to keep in mind if you use rollerball ink, too, as that is also water-based. When I discovered this, I then re-wrote the fountain pen ink, over the highlighter straight away - it only caused more bleeding - I should thereafter have left the highlighter ink to dry for a bit! I reckon it will be fine, much better, when used that soon after writing in oil-based Biro ink. Happily, these highlighters don't bleed colour to the back of the page you are working on, so, there are no 'ghost-lines' of highlighter on the reverse page.These are great quality pens - in my experience, it's a given, if it's Japanese-made stationery, it will be of good quality; they're well-constructed, not flimsy in any way & with them being only 13 cm long, they will fit in pretty much any pencil case; the lids have a pocket clip on, are easy enough to remove, yet close securely, they're not about to come off in transit; at 1.60 GBP for each piece, they represent great value for money, too. I even like the sturdy, re-sealing, smooth-touch pouch they come in. I'm really pleased with this purchase - I would happily buy these pens & from this seller & this brand again. Arigato gozaimasu & konnichiwa! Rei.

They are double-sided which does take some getting used to but they are amazing colours and they compliment each other well.