Review on 🎨 Ivory Grout Pen Tile Paint Marker: Waterproof Grout Colorant and Sealer Pen - Ivory, Narrow 5mm Tip (7mL) by Vincent Bain

I have a 4x6 shower with sliding glass doors so about 14'x8' tile area. The tiles were painted light beige, so I chose ivory to paint them. I bought 6 markers and they were all the same. Much less color in the marker than necessary! I pulled about 6 inches before having to shake again to get more paint onto the tip. When the paint came out it covered the grout stains, but there was so little of it in each marker it was a waste of money. At $9 each, the shower was $54 and I left out some areas I just didn't have enough paint to cover properly. I would really like to know how bad the markings were before I waste my money and time. Keep in mind.