Ceramic tile pen is suitable for the beautification of the material gaps, renovation for moldy and material gaps falling off. The acrylic tip is and easy to operate.It is waterproof and moisture-proof with strong coverage. The colors are rich and they will not fade. Size: (approximately): Length: 14cm, Diameter: 1.5 cm Each pen comes with 3 replacement nibs Features: 1. Function: Simply reTouch by drawing over scratches, nick or discoloration with this tool. Seals and protects grout lines in tile floors. 2. Widely use: Effectively cover blemishes, , nicks on scratched tile, ceramic and more. 3. Protection: This tile pen can provide a protective barrier against mold and mildew grout -. 4. Easy to use: 1) Clean and dry the tile seam before using. 2) Shake the . 3) Then trace over the grout lines. 4) Wipe off any excess colorant from tile. Color: dark gray material: plastic Package Contents: 8 x Tile Repair Pens (with replacement accessories) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.