Sharpie 2003991 Pocket Highlighters, Chisel Tip, Fluorescent Yellow, 36 Count

This is a great buy for this amount of highlighters. I am working on my masters degree and am doing a ton of reading. I’m a major highlighter so sometimes I dry them up pretty fast. These seem to last a decent amount of time and are the only color I use. Glad to find this alternative to buying 2 or 3 at the grocery store which works out to a much higher cost overall.

We go though a lot of highlighters at the firm; these are my favorite. After 14 years of highlighting millions of pages of text, these are the only ones I buy. The tip is perfectly slanted, shaped and sized for a line of text. The colour is amazing and bright yet you can photocopy a page without altering the copy. They last long and don’t dry out too quickly if you forget the cap off. Don’t waste money on any other highlighter.

Sharpie is the leading manufacturer for these type of highlighters and usually non brand ones work just as good, except for in this case. I have tried other brands and basically I keep on coming back to Sharpie. I happen to highlight a lot probably more than the average person so for me having a quality highlighter that last long and doesn’t easily dry up if the cap is off for 3 seconds is important. Bottom line, you can’t go wrong with these highlighters. And they don’t smear.

I received a box of 12 Sharpie “Smear Guard” yellow narrow chisel highlighters. The box says assembled in the USA and is non-toxic (Conforms to ASTM D-4236. The pens are 5-3/8″ in length x approximately 1/2″ wide at the cap (without clip) and is about 1-1/2″ in circumference, if you want to plan your book bag slot or pocket. The clip is not a brittle plastic and is somewhat resistant to cracking, within reason; I was able to use my finger to pry the clip open ~1/2″ with no cracking or stressing of the clip, it resumed normal position, I only did this once. The cap is secure, though I have not used the highlighter and open-end and closed the lid many times, it seems secure, but note that it does not snap in place, but rather slides on. My sense is that the cap may loosen over time.

In comparison to my other highlighter, the Sharpie ink comes out a little “dryer” and I think not fluorescent, which is a reason for the lack of bleed through (see pics). I have attached pics of a bleed and bleed though experiment on notepad paper similar in thickness to typical photocopy paper. The first is a serious of various ink pens and a pencil and whether of not it caused smudging of the ink. There was no problem with any of the ink pens. The Sharpie fine point pen did bleed through. In addition, highlighting documents printed on a HP Inkjet printer or a typical store receipt caused no streaking, smudging or bleed through. In an attached picture I also highlighted (one sweep) of a drug package insert, pretty thin, almost like bible paper, with no bleed through.

Overall pleased with the product, performs well, no bleed through in typical use. Need more assessment of longevity and security of the cap.

I enjoy doing the measurements and experiments. If you found the results useful, please hit the “helpful button. It provides motivation to do these types of experiments. Thank you.

I read (and highlight) a lot of research papers, so I burn through highlighters quickly. These are bright and the tip is durable. I plan to continue to purchase these.

I was worried after seeing reviews that they only got one highlighter instead of the 12. Happy to say I received all 12 orange highlighters, and they work great. Can’t vouch for the rest of the colours though.