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 bars14x right angled joints8x   straight joint bars36x 8mm long M5 screws36x T-slot nuts for M5 screws1x   Controller mounting hardware6x   plastic end caps3x   allen keys (for M5, M3 screws)Note: valve mounting brackets, valves, bottles, controller shown in picture are NOT included.