Package Contents: 1 x Dryer Vent Hose 2 x Clamps Package Contents: 4 inches in Diameter x 5 FEET Long Air Ducting, including 2 Stainless Steel Clamps. Flexible 3 Layers Material: The Hose is made of 3 layer Thickness.The PVC film help to be light-proof and noise reduction. Fire-Resistant Air Duct: The Dryerexhaust hose is fire-resistant.And the temperature range is from -30 degree to 150 degree. Easy to Install: Use the screw to tighten the hose and clamps,the air ducting is flexible to bend with any angle.You may cut the length of ducting as you need. Wide Application: The Ducting Is suitable for HVAC system.