Features: Works seamlessly with round ducts in HVAC, kitchen exhaust, dryer vents, and machinery exhaust systems. The 10 inch to 8 inch air duct reducer is a practical adapter for retrofitting and upgrading ductwork. Rugged construction resists dents, UV exposure, and waterproof, making the 10 inch to 8 inch round duct reducer to be a good solution for demanding ventilation needs. Specifications: Material: galvanized steel Color: silver Type: 10 inch to 8 inch Package includes: 2 Pieces 10 inch to 8 inch duct reducer Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays