Cylinder bundles like MegaPack4 enable the transport of technical gases such as oxygen or nitrogen to manufacturing plants. It is characterised by innovations in safety, ergonomics and environmental protection, which have been incorporated into an easily understandable design. With its central control panel, ergonomic content indicator and tamper-evident seal as well as secure impact protection, the unit is geared specifically to the user. The cylinder bundles are stackable and also feature colour coding to identify types of gas by means of a variety of distinctive colours. The unique construction, with a roll bar functioning as a crumple zone, facilitates a very lightweight concept, making the transport more ecologically friendly and economical.