Description: [Adjustable Length]600cm/19 feet long when fully extended, flexible aluminum foil ventilation ducting, bend and stretch as you want, which is convenient for you to use. [Convenient Installation] Flexible and easy to install the dryer vent hose. Simple, convenient and durable. Practical accessory. [Widely Used]Air vent tube can be widely used for system, kitchens cooking exhaust, dryer rooms, bathrooms, greenhouses, exhaust and intake fans, blower, etc. [Premium Material]Thick Layer aluminum foil, which is resistant to high temperature and not easy to deform. [Ducting Diameters]6 sizes diameters to meet different needs; 8cm/3.15inch; 10cm/3.94inch; 11.5cm/4.53inch; 12.5cm/4.92inch; 15cm/5.91inch; 16.5cm/6.49inch Size Chart: Fully Extended Length: 600cm/236.22inch Optional Diameters: 8cm/3.15inch 10cm/3.94inch 11.5cm/4.53inch 12.5cm/4.92inch 15cm/5.91inch 16.5cm/6.49inch Package Includes: 1 Piece Vent Hose Note: Please allow slightly errors due to manual measurement and different monitors. Dryer Vent Tube Duct Air Vent Hose Thick Layer. Aluminum Ducting Vent Hose Flexible Boat Blower. Exhaust Ductwork Ventilation Duct Fan Hose. Dryer Vent Hose Aluminum Foil Ducting portable . Range Hood Exhaust Pipe Heating and Cooling.