5 Blades Efficient Heat Powered-aluminum Fireplace Fan. Features: Blades: 5-Blade Will Provide Larger Air Volume Making It the Most Efficient Way to Heat Your Room from Your Stove Power Supply: No Batteries or Mains Electricity Required the Thermoelectric Module Acts As a Small Generator to Power the Fanins Motor. Material: The Fan Blade Are Made from Anodized Aluminum Which is Rust-proof Wear-resisting with Good Thermal Conductivity Air Circulation: Impove Warm Air Circulation Results in Greater Comfort and Reduce Wood Consumption from Your Stove. Wide Application: Widely Used for Wood Burning Stove Gas Stove Pellet Stove and More. Specification Material: Aluminum Blade Size: About 172mm/7inch Model Number: Fireplace Fan Type: Other Package Included: 1pc X Blades . We are an international based seller that will ship your order from abroad please at least a minimum 21 working days for delivery right now due to the ongoing delays in shipments globally. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.