What You Get: there are 6 pieces of grout restorer pens .Two colors, 3pcs black grout restorer pens and 3pcs white grout restorer pensthese tile repair tools would help improve the beauty of your home decoration, enough quantity to use and replacement Keep the original color: the renewing grout markers help to cover stained seams between tiles, restore or change the color of your tile lines, and prevent them from further stained, make your home looks more neatly Shake well before use and press the pen tip vertically until the ink just flows out Restore Clean of Surface: the grout repair maker lines are fast drying, will cover stained seams between tiles and renew the surface after painting, giving you different visual experience of your home;Note: please allow slight color difference due to different display Material: each grout tile pen is mainly made of water-based material, nice for children and pets,The size of the grout wall pen measures approx.15 mm in diameter, and approx. 140 mm in length For Home Decoration: the grout restorer pen can be applied safely for kitchen, bathroom, shower stall, porch, patio, wall, floors, and many dirty tiles areas, just follow the grout lines to paint, it works on epoxy grout, mortar joints, any grout areas that start to become a bit dingy and covered with mold