Made from solid fir wood with a splinter-free painted finish, this set of four 24-inch floating ledges builds a kids bookshelf wall that grows with any nursery or playroom. The wave-shaped front edge keeps picture books and plush toys from tumbling off, while included expansion screws lock each nursery bookshelf ledge securely into the wall. Arrange all four in rows, columns, or staggered patterns to hold up to 16.5 lbs per shelf.