Paint, decoupage and decorate them. Each hat box is 5" tall x 10" wide with a removable lid. This large, round paper mache box comes with a lid, stands 5 inches tall, and measures 10 inches in diameter. It's a great hat-box-style paper mache craft box for storing craft supplies and more. Please note that paper mache is an all natural product and slight variations may occur. The inner diameter of the box measures 9.5".