This metal bunk bed features a heavy-duty black steel loft structure that maximizes floor space for bedrooms, dorms and kids rooms. The upper bed includes full guardrails for safe sleeping, while the lower area has a fold-out table for instant study or play use. It is equipped with a built-in charging station featuring 2 Ac outlets, 1 Usb port and 1 Type-c port for convenient device charging. The Rgb Led light system supports remote and App control with adjustable colors, brightness and modes. The ladder can be installed on either side to fit various room layouts. It comes with detailed instructions and labeled parts for easy assembly. The recommended mattress thickness for the upper bunk is 4-6 inches.