1.Metal Bunk Bed: Made of heavy duty steel, the twin size bunk bed frame provides great support. If you have any question about this bunk bed frame, please feel free to contact us via our official email: csr@merax.com 2.Twin Size Bunk Bed with Guardrail: Featuring full-length guardrail on top bed and middle bed, this bed guarantees user's safety. 3.Space-Saving: Low bunk design guarantees ample space for upper bed user. With space-saving design and sturdy construction, this bed will provide great experience. 4.Bunk Bed with Twin Size Trundle: Comes with a twin size trundle bed for extra accommodation. This triple bunk bed With Trundle is perfect for family which has multiple members. 5.Dimensions: Overall Product Dimension: 77.5''L*41.3''W*78.7''H. Top Bed Weight Capability: 200lbs. Middle Bed Weight Capability: 250lbs. Down Bed Weight Capability: 250lbs. Trundle Bed Weight Capability: 250lbs. With clear instructions and included components and parts, assembling this triple bunk bed is a breeze.