[Leak- Ends with Rubber Seals & Clamps]Both ends of the dryer exhaust hose are equipped with flexible rubber rings that help minimize air leaks, improving drying efficiency. Two heavy-duty adjustable clamps are included, enabling quick, secure, tool-free attachment to standard dryer vents, wall vents, or couplers for a tighter seal. [4" x 5FT Flexible Clothes Dryer Vent Hose]Featuring a 4-inch diameter compatible with 3.95-4.15 inch standard dryer vents and a 5FT extendable length, this vent hose easily bends to fit tight corners, narrow gaps, or limited laundry spaces while maintaining smooth airflow for most household clothes dryers. [Upgraded 6-Layer Aluminum Duct Structure]Built with a reinforced 6-layer design including aluminum foil, PET,internal steel wire,and a PVC outer coating, this dryer duct resists tearing, punctures, and deformation. The steel wire maintains round shape under pressure, ensuring reliable, long-term exhaust performance for daily drying cycles. [Applications]Engineered to withstand temperatures up to 212°F, this aluminum dryer hose is suitable for typical clothes dryer operation and other household exhaust tasks. The PVC coating helps reduce operation noise and light interference, making it ideal for HVAC venting, bathroom fans, kitchen exhausts, and more.