Twin Over Twin Bunk Bed with Storage Shelf and Drawer-Dark BrownThis bed frame is composed of a twin over twin bunk bed and a rolling trundle. They are all made of solid wood and high grade MDF so the whole bed frame presents perfect sturdiness. Meanwhile the upper twin bed comes with a 12. 5" full length guardrail to prevent kids from falling. On one side there is a 15. 5" wide 3 step staircase. Underneath there are two open compartments for books and decorations. At bottom the bunk bed has a rolling drawer for