Features: Our magnetic fireplaces vent cover can effectively prevent cold air from entering the fireplaces vent in winter, and also keep dust, pollens and annoying critter out from entering rooms through the vent. Keep your indoor space warm and comfortable with our Magnetic Draft Stopper. Prevent cold air and heat loss, ensuring a comfortable environment all winter long. It will save a lots of electricity bill. Made of magnetic rubber material, durable and fire resistant. The easy installation design provides effective insulation and energy savings. Perfect for homes, offices, and commercial establishments looking to improve heating efficiency. Suitable for families, offices, and businesses that want to save on energy while maintaining a warm and comfortable atmosphere. Our vent cover for the fireplaces has two side, 1 side is a mattes surface (non-magnetic), and the other is a smooth surface (magnetic). You can aligns the magnetic surface with the fireplaces vent after the fireplaces is out and the fireplaces has cooled to room temperature. Specifications: Material: magnetic rubber Specification: 1/2/3/4 Specification 1 Size: 91.44x10.16cm/36x4inch Specification 2 Size: 101.6x10.16cm/40x4inch Specification 3 Size: 91.44x15.24cm/36x6inch Specification 4 Size: 101.6x15.24cm/40x6inch Quantity: 2pcs Package Includes: 2x Fireplaces Draft Stopper note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.