【 Movable Gas Cylinder Rack 】: Oxygen storage rack with handles and 4 wheels for easy storage and transportation.99 【 Durable Oxygen Tank Holder 】: Thickened oxygen cylinder holder made of metal iron, strong and durable, not easy to scratch 【 Tool Basket 】 Oxygen tank cart is equipped with a basket for tools, you can carry the tools you need when using the oxygen cylinder trolley, convenient for you to travel and transport needs 【 Safe Slot 】 The upper slot edge of the oxygen cylinder cart is wrapped with a rubber ring and the lower slot has a fixing groove to prevent gas cylinders from being scratched and to hold them securely in place Thickened Base : using thickened cold-rolled steel plate, ultra-resistant to pressure, strong load-bearing capacity, more durable and lightweight, better fixation performance