Features: Safe and Secure: Non-toxic water-based ink making your home's food and utensils safer and create a clean and comfortable living environment for children and family. Easy to Use: Simply shake the pen press the pen nib down repeatedly until ink flows into the nib and then start restoring. Best Choice: The grout pen is the ideal choice for living room kitchen and bathroom floor and wall seam. Skip scrubbing tiles and use a grout pen to recolor your grout. Convenient and Fast: This is a convenient tile grout that can make your home look clean while having the style you love. After-Service: Any problem with our product please contact us first and we will reply you with the best solution within 24 hours. So why not have a try? Specifications Color: White Material: Water-based Ink Weight: about 66g Product Size: 13*1cm Package Size: 13.2*3.6*1.2cm includes: 3*Patch Pen