Mead Collapsible Turn-In Tray, Blue (72320) Keeps papers neat and organized Corners quickly snap together to create a tray to use as a turn-in tray for teachers, activitiy/project tray, or an in-box Tray collapses flat for convenient storage Fits up to 200 sheets of 8 1/2" x 11" paper; Ideal for worksheets, construction paper, and more Blue Keeps papers neat and organized, Corners quickly snap together to create a tray to use as a turn-in tray for teachers, activity/project tray, or an in-box, Tray collapses flat for convenient storage, Fits up to 200 sheets of 8 1/2" x 11" paper; Ideal for worksheets, construction paper, and more, Blue