Oxygen rack: Our sturdy oxygen tank trolley/cart is made of iron with a powder coating to prevent chipping and scratches Wall-mounted design: Our oxygen cylinder holder adopts the simplest design. You can fix it to the wall with the expansion screws we provide, which can save space and add a certain aesthetic feeling Adjustable protection chain: The oxygen tank rack is equipped with a metal anti-drop chain, and you can adjust the length of the strap as needed Arc design: The oxygen cylinder holder has a curved steel ring support that can fit tightly to the body of the cylinder, keep the cylinder upright, and prevent it from shaking and falling Wide application: Flexible application in ambulances, factories, laboratories, hospitals, schools, nursing homes