Features: Made of high quality material, durable and sturdy, resistant to corrosion and rust. Flexible and convenient, easy to install and fix, with 2 clamps, stable and secure. The ventilation tube is covered with PVC film, waterproof and light-resistant, not easy to crack to effectively reduce noise. Widely used in HVAC air conditioning systems, kitchens, greenhouses and growing rooms, bathrooms, dryers, growing tents and more. With a temperature range of -30 degrees Celsius to 150 degrees Celsius, it can reduce heat leakage to meet your requirements. How to use First, connect the hose clamp to the dryer with a screwdriver; Second, pull the hose; Thirdly, customize the hose according to your requirements; Finally, connect it to the ventilation system. Specification: Color: as shown Material: PVC + aluminium + stal stainless Pipe diameter: 4 inches (100 mm) Length Extended: 5 meters (16 feet) Clamp Diameter: 4 inches Temperature range: -30 degrees Celsius to 150 degrees Celsius list of packages: 1 x Vent Hose 2 x Clamps