This is an aluminum frame made up of 13 33cm long aluminum T-slot segments. It comes with all necessary joints, screws. 13x 33cm long aluminum T-slot bars 14x right angled joints 8x straight joint bars 36x 8mm long M5 screws 36x T-slot nuts for M5 screws 1x Controller mounting hardware 6x plastic end caps 3x allen keys (for M5, M3 screws) Note: valve mounting brackets, valves, bottles, controller shown in picture are NOT included.