Features: Our bunkie board full creates a firm and flat surface to prevent the mattress from sinking into the gap of the bed board. It is suitable for children's beds, bunk beds, sofa beds, pull-out beds, sofa beds, etc. Easy to operate, just place the bunkie board on top of the sofa or bed to solve the sagging and spring problems caused by insufficient support and improve sleep quality. Specifications: Material: board Color: black Size: about 54 inches x 75 inches in width and length Package includes: 1 X bunkie board Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays