I wish I had read the reviews BEFORE I bought these. I saw the price, I was looking for a dry highlighter--how could I go wrong?! This highlighter CONTINUALLY goes back inside the device. You have to click it with every stroke... NOT what you're looking for, believe me.
If these highlighters weren't already priced low without the sale, I still wouldn't have returned them because it isn't worth the cost of postage to return them. The highlighter inserts continue to slide into the pen, therefore causing me to constantly click the plunger during every word I try to highlight. I do not recommend purchasing these at all. My only hope is that the inserts can be used as refills in a different device. I couldn't give these even a piece of one star. That's how bad they are. Keep your money folks.