shark shaped stacking pencils - bulk set of 12 - summer, shark birthday party favors and school supplies fun express these shark stacking pencils are a colorful way to say hello to spring and goodbye to winter! if you’re a teacher, they will be a perfect addition to your classroom supplies! don’t forget about those spring birthday parties and use these stacking pencils as birthday party favors! each 2" shark stacks together to make a 7" pencil. plastic.