About the Product Our tile grouting pen contains epoxy resin, hydroxyethyl cellulose, and calcium carbonate. It's resistant to color change and maintains its aesthetic appearance. It's suitable for high-humidity environments such as kitchens and bathrooms. It's easy to use: clean dust and loose objects around the tile grout. Gently shake the pen to mix the liquid. Press the tip of the pen vertically several times until you see liquid flow to the tip. Gently move the pen tip along the tile grout to evenly fill the gap, then allow it to dry naturally. It's also specially designed for waterproofing, effectively maintaining the waterproof properties of tile grout. Product Name: Tile Grouting Pen Product Ingredients: Epoxy Resin, Hydroxyethyl Cellulose, Calcium Carbonate Keywords: Aesthetic Gap Filler Weight: 68g Product Specifications: 6 pieces Product Size: 1*13.4cm Note: Light reflections and different monitors may cause the color of the product in the image to vary slightly from the actual product. Minor errors may occur in measurement.