LCI8245 These 72 frames come in three popular sizes designed to fit school photos (24 each of: 1.5 x 2.25 2.25 x 3.125 4 x 6). Scratch into the smooth black surface with a wooden drawing stylus to reveal magical rainbow colors. Students can make each photo frame a unique one-of-a-kind masterpiece! Made of sturdy Scratch Art multicolor board. Acid and lignin free - ideal for scrapbooks.