Save on Energy, Block the Drafts Coming into your Home, and Eliminate Wood Stove and Fireplace Flue Smells with the 10” Round Chimney Flueblocker. The 10” Round Chimney Flueblocker is an innovative fireplace draft stopper that can easily be inserted into a round 9” or 10” wood stove or chimney flue to stop drafts and block fallen debris from coming down into the chimney. Made of dense rigid wool imported from England, the Flueblocker seals and insulates your fireplace or wood stove chimney - simply insert the fireplace flue block into the narrow part of the flue just above the firebox, with or without a damper. The Flueblocker may also be trimmed with scissors to accommodate sizing and hardware for the perfect custom fit. No more fussing with inflatable plugs which can deflate over time with temperature changes or even puncture. The round Flueblocker is durable and incredibly easy to install and uninstall at any time. Just be sure to remove the Flueblocker before you light your fireplace. ROUND CHIMNEY FLUEBLOCKER KEY FEATURES & INFORMATION: Cannot be used with a functional gas log set. For safety, remove or disable gas log set before installing the Flueblocker. Includes one round wool Flueblocker. (Actual product diameter is 12") Will fit round wood stove or fireplace flues from 9” to 10” and can be used with or without a damper. Fits above firebox to discreetly and effectively block fireplace drafts – no more blankets or fireplace covers! Flueblocker is made with Herdwick wool at the Chimney Sheep facility in England. Save up to $250 on your energy bills. Stops drafts, debris, fireplace smells, birds, and more. 30-Day Money-Back Guarantee. Order your 10” Round Fireplace Flueblocker Plug today to save on your energy bills and maintain a more comfortable home.