[Fireproof Material] Our fireproof gaskets are made of high-density ceramic fiber. [High Temperature Resistance and Strong] The fire resistance of high thermal insulation materials can reach 2850 degrees Fahrenheit. [Features] The pellet stove gasket paper is lightweight and durable, soundproof, fireproof, and reliable. You can use it with confidence and give you a satisfactory experience. [Easy to Cut] The furnace heating pad can be cut to the appropriate size as needed with a sharp knife or blade so that you can place it where you want it. Colour:White Material:ceramic fiber paper Size:25x18cm Package Contents: 1set * ceramic fiber insulation(4 pieces) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.