Prepasted - Washable - Strippable Priced, Packaged and sold as a double roll 20.5 in. x 33 ft = 56 sq. ft. The Dream Big Wallpaper collection by York Wallcoverings sparks childrens imagination with colorful wallpapers featuring designs inspired by the sea and the sky, nature and fantasy, superheroes and more, to create a space that is truly special. An individualistic pattern of triangles arranged in an out-of-the-box placement, Geo Triangles Wallpaper is an eye-catching combination of shapes and colors for a striking addition to room decor. Manufactured on SureStrip, a unique high performance substrate, this ultra-easy removable wallpaper is guaranteed easy to install and easy to remove; simply use water to activate.