The flexible duct hose can be easily bent or stretched, providing smooth smoke exhaust and straightforward installation. Reinforced with independent steel wire support, this ducting offers strong resistance to wind pressure, durability and long service life. Designed for heavy-duty ventilation tasks, including exhaust fans and vent exhausts in factories, basements, farms, and automotive . Constructed from canvas silicone material, it is waterproof and high-temperature resistant, for various ventilation and smoke exhaust applications. Lightweight and flexible, easy to bend., Manufacturer: KXCVBNKLJ