Bests & Worsts Reviews from Amazon

So with these grout pens you really need to hit the sweet spot to get them to work, but once you figure it out its a breeze and they last pretty long too. First up shake it up like theres no tomorrow. Once you've sufficiently shaken it, take the tip and lightly press it down several times into the grout. After a few seconds of bobbing it up and down like its a pogo stick for your fingers you'll start to see the paint come down. Now you're ready to recoat your grout, lightly brush the pen over the grout and keep it moving. I ended up coloring outside the lines often so i kept a paper towel close by and just cleaned up any overage i made. Eventually the paint is going to start to slow up, no problem, dont push harder or start scraping the tip into the grout. That will just destroy it. Instead start over, dabbing the tip lightly into the grout to get the paint flowing again. You might need to shake it a little too. Rinse and repeat this process multiple times and I was able to have multiple pens run out of paint before the tip was destroyed.... I also destroyed like 3 pens extremely early before I figured this out. So i thought I would drop in here and let you all know before you make the same mistakes i made.