【Space-saving Design】：The twin size down bed can be pulled out as a double twin platform bed. Add the trundle, you will have 4 beds to accommodate your friends or over-night guests. 【Safety Guaranteed】：Full-length guardrails on the upper bunk prevent accidental falls. The staircase tightly attaches to the bed for easy access and wobble-free footing. 【Convenient Design】：The ladder can be placed on either side of the bed according to your needs. 【Easy Assembly】：Each order comes with a clear and detailed assembly instruction guide and all necessary tools are provided to get your bed assembled in no time. Specification：