Made of material for safe to use. Rejuvenate grout restorer pens will cover stained seams between tiles and renew the surface after painting, the stubborn grout stains can be refreshed in and . Features - Color: Grey. - Material: PP Plastic. - Size: 14x1.5x1.5cm. - Made of material for safe to use. - Rejuvenate grout restorer pens will cover stained seams between tiles and renew the surface after painting, the stubborn grout stains can be refreshed in and . - The renewing grout markers help to cover stained seams between tiles, restore or change the color of your tile grout lines, and them from further stained. - The grout restorer pen lines are fast drying, just follow the grout lines to paint, it works on epoxy grout, joints, any grout areas that start to become a bit dingy and covered with . - A good housewarming present for your friends, they will like it. Package list: 6 x Grout Tile Pen