Round fiberglass stove gasketing. Made of the highest quality texturized fiberglass yarn. They are 100% asbestos-free and will withstand temperatures up to 1000°F. Constructed to allow a smooth fit over irregular contours and around corners. Recommended for door perimeter and stack seals in air-tight corn, wood, pellet, and gas appliances to ensure peak operating efficiency. Use in conjunction with high temperature cement. White.