Features: Brand new and high quality Adjustable Aluminum Exhaust Pipe Easily adjust the length of 12cm/4.7inch Ducts to fit various exhaust fan, blowers, dryers. for kitchens, bathrooms, factories. This Ventilations Ducts is resistant to corrosion and can withstand temperatures. Its flexibility allow for easy installation in tight, ensuring efficient air circulation. for Various Users Whether homeowner, a professional contractor, this exhaust pipe for anyone in need of efficient Ventilations solution. Multiple Applications for smoke extractions, exhaust Ventilations, and air circulation in kitchens, bathrooms, workshops, and industrial facilities. Improve air quality. Improve. With its expandable constructions, this exhaust pipe ensures smooth , effectively removing smoke, and unwanted fumes. Enjoy a healthier environment. Specifications: Material: Aluminum Inner Diameter:12cm Length: 8meters, 4meters(Optiona) Package Includes: 1PC Aluminum Foil Ventilations Pipe note: 1.Please allow 0-1cm error due to manual measurement. make sure you not mind before you bid. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.