This complete dryer venting kit includes a louvered vent hood with bird and pest guard, 4 in. x 8 ft. flex duct, two metal worm clamps and our proprietary Airtight technology pipe. This product operates quietly for maximum exhaust air flow and includes a bird guard to help keep birds and pests from entering homes or outdoor dryer vents. Both the vent hood and bird guard are durable, weather-resistant and include a UV inhibitor to prevent sun damage and cracking. The Airtight pipe improves air flow and appliance efficiency to help reduce drying times and prevents moisture from entering into your walls by preventing air leakage during the venting process. This complete dryer venting kit is all you need to hook up to your dryer and exhaust the air outside.