Package Includes: You will receive a roll of 3mm x 10mm x 3m self-adhesive fiberglass chimney seals. which can meet the needs of most people. The self-adhesive chimney seals are available in 3m lengths, you can choose the right length to cut according to your needs. High Temperature Resistance: The seals are made of high-quality graphite impregnated glass fibers, using advanced technology and professional technology, sturdy and wear-resistant, durable. They have good heat resistance and can withstand high temperatures up to 600C. (The temperature of the open fire is much higher than 600C, please do not put the gasket in direct contact with the open fire). Self-Adhesive Design: With self-adhesive design, no adhesive is needed, just peel off the protective film. Before pasting, you can clean the fireplace or other places where you want to install the gasket. Waiting for 12 hours after pasting can strengthen the effect of the paste and make it last longer. Using chimney seals can keep the space clean and avoid accidents caused by sparks. Smokeless Seal: Our chimney seals are professionally manufactured with a flat design, which provides a higher and better chimney seal than normal seals. It is suitable for fireplaces, ovens, grills, smokers, pipe stoves, wood stoves, industrial stoves, etc., that is, almost all smokers and stoves. It can effectively isolate smoke, create a smokeless environment and promote fuel combustion.