Features: 1. Ceramic tile pen is suitable for the beautification of the material gaps, renovation for moldy and material gaps falling off. 2. With the wide application, it can meet the requirements of different ceramic tile crevice repair. 3. Water-based environmental protection ink is non-toxic and safe. 4. The acrylic tip is durable and easy to operate. 5. It is waterproof and moisture-proof with strong coverage. 6. The colors are rich and you have 7 choices, and they will not fade.