Modern style and comfort to any bedroom,save space Sturdy System:strong steel metal structure for durability & stability, quiet, noise free and large earing capacity,safe stairs, full over full bunk beds create a cosy space for your child Easy Assembly:The package includes clear instruction,all parts and tools,very easy to assemble No box spring needed:This bed frame no box spring needed, can be used with all mattress types 1 set of bed in 1 carton