It’s empty, so you can start from scratch. Fill it up to meet your exact needs, add your Oxygen Tank and AED and get it ready to roll quickly to any medical emergency… This Hi-Vis (flashing wheels, Hi-Vis safety stripe) Trauma First Aid Bag has a unique crush-resistant exoskeletal frame and includes an Oxygen Tank Holder and AED Strap so you can roll everything with you. The aluminum frame is on the outside which provides more packing space and durable protection from falling debris for your emergency trauma first aid supplies. (Supplies and internal organization systems sold separately. Oxygen Tank & AED NOT included).