Children manipulate the tiny twig-and-loop closures to open and close these square banana fiber boxes. Box interiors are lined with wide strips to better contain tiny items; a lovely, functional choice for sewing items. The set includes three graduated sizes that nest inside each other for storage: 3" square x 1¾" high; 3½" square x 2" high; 4½" square x 2¾" high. Each box is unique. Ages 3 and up.