Our Economy dry mount tissue is a lower-cost alternative to premium tissues such as Colormount. Economy dry mount tissue is formulated to permanently bond almost any type of papers and RC photos to common substrates like card stock, cardboard, aluminum, and foam board. It is acid-free and is reversible. Roll of tissue measures 24.5 inches (62.2 cm) wide by 150 feet (45.7 M) long. Made in USA.