Specification: Color Black/Silver/White Materials Metal Overall Dimensions 78"" x 41.5"" x 54"" Height between Bunk Bed 36.5"" Height of Guardrail 10"" Recommended Mattress Size Twin (not included) Weight Capacity of Upper Bed 400 lbs Weight Capacity of Lower Bed 400 lbs Net Weight 73 lbs Description: -Twin over twin bunk bed with space-saving design-Heavy-duty metal slats form a robust frame-Powder-coated finish and solid connection serve for a long time -Comes with full-length guardrails for safety and all-round protection -Features a ladder to off