Grades 1 and Up. Study Stickers are sure to be a hit with students. These fun, student references feature bright, colorful designs and practical study information to reinforce basic math, language arts, and social studies concepts. At 4"x4" (10cmx10cm), Study Stickers are a perfect fit for desktops, folders, notebooks, and learning centers. And they are removable from hard non-paper surfaces such as wood, metal, and glass. 10 Study Stickers per package plus bonus stickers.