Book marks! Are they a school supply? They're not a book...so Misc. Goods it is...These are flat, magnetic book marks. Each one has a different character, & you get Sonic, Tails, Amy, Knuckles, Cream & Cheese all in one set. The backgrounds are stylish & simple, with two colors. The art is mostly newer 2011 stock, so they appear fresh. These are likely made by GE Entertainment. These were at Sears for about 9.99. Info added by Sonicasha.