Washi tape is a low-tack decorative masking tape that's often used in journaling and scrapbooking. It's specifically formulated to be repositionable on most papers. It's great for decorating of all sorts, but because of its low-tack nature, it is best used on paper or surfaces that are clean and smooth. It won't adhere to porous surfaces, dusty or dirty surfaces, or places that get wet.