Meterial: The air duct is made of high-quality flame-retardant aluminum and steel wire spirals.Duct hose come with high flexibility,the temperature endurance range is -20~100℃ Application: Aluminum ventilation ducting is usually used in various air circulation or ventilation projects.Such as for kitchen exhaust fans,cooker hood,air conditioners,dryers,hydroponic planting rooms,bathrooms ect Size: The aluminum foil ventilation ducting diameter about: 10cm,Length about: 1.5m,please make sure the ventilation hose size meet your need Easy To Install: Double-Layer thickened air ducting easy to use,we just need connect the two ends of the air duct hose to the position you want to install, and then use a screwdriver to tighten the hose clamp on the duct hose,very easy to finish it Package Include: 1 x Aluminum Air Duct,2 x Stainless Steel Clamps,Diameter: 100mm, Lenght: 1.5m, Weight: 0.4188782978 Pounds, Manufacturer: AZH