The Powell Angelica Conversion Kit Extension for Twin/Full Bunk Bed - White is perfect, if there is a growing child at home. This extension makes it possible for a bottom twin size bunk bed to expand into a full size bed, allowing it to adjust according to your childs growing needs. Made of pine wood and medium-density fiberboard, this extension is sturdy and durable. Its white finish allows this extension to complement most room decor themes. * Made of MDF and pine wood * Enables bottom twin size bed to expand into a full size bed * Pure white finish * Allows your childs furniture to grow along with them * Dimensions: 77W x 15D x 15.75H in.