This Free-standing Tube is a Great Way of Displaying Your Brand. It Only Needs to be Inflated Once, After Wich It Will Remain Up & Stable. the Aero Tube has a Double-layered Air-tight Structure & is Slimmer Than Conventional Inflatable Tubes. for Inside & Outside Use, Available in Different Sizes Starting From 200cm x 45cm to 500cm x 60cm. Minimum Quantity: 1.