Do you want to keep your class organized? What teacher doesn't right? Add this tool to your bag of tricks! Peel and Stick Label Pockets are perfect for the cubbie trays that are in nearly every classroom. Print a picture of the item you want stored in the bin, slip it inside the durable plastic sleeve, affix it to the plastic storage bin, and you're on your way to an organized classroom. They'll work on just about any plastic storage container. 3 ½" x 3 ½" Set of 20.