Six rainbow-colored Sort & Store Book Caddies in a sturdy tray create neat-and-tidy desktop book organization. Caddies feature finger pulls and accommodate books up to 10½" wide. Blue tray measures 5¼" high (3" high in front) x 28" wide x 12½" deep. Ships flat. Made in the USA from recycled corrugated fiberboard. Sort & Store Book Caddies are also available separately in single-color sets of five.