Steel Gas Cylinder Rack: Made of stainless steel,sturdy and solid,not easy to bend or deform,strong load-bearing capacity Steel Ring Protection: Equipped with a fixed steel ring to securely hold the load during transport so that the cylinders do not slip or tilt,increasing the stability of the rack Moveable Trolley: The rubber wheels of the oxygen tank trolley ensure smooth transport of oxygen tanks and also ensure a quiet environment by avoiding noise disturbance Safe Storage of Gas Cylinders: Nitrogen tank holders support fast,hassle-free transfers between acetylene Wide Range of Applications: These holders are used to secure high-pressure gas cylinders in facilities. for use in factories,schools,RVs,laboratories,s,CDCs,nursing homes and workshops