[Sturdy Metal Frame] Made of solid metal frame, the bunk bed is durable and reliable for you bedroom.Surrounding with high guardrail on upper bed, no need to worry about safety when sleep alone. [Space Saving Design] Three beds in one, while this bed provides a solution for multi-person accommodation, it also greatly saves space. [Multiple Storage Space] The 4-tier shelf is both a storage shelf and a staircase. The upper bed also comes with a 21.3' x 39' plank where you can put toys and more. Theres spacious space under the down beds. [No Box Spring Required] The slats support the mattresses not to slide and increase the service life. [Easy Assembly] All parts included in your package are indicated clearly. With step-by-step installation manual and per-drilled holes, you can easily assemble this bed individually. Manual installation is recommended.