[Appropriate Size] The hot tent stove jack measures 9.1 x 7.9 inches with a pre-cut round hole of 3.7 inches, suitable for chimney pipes less than 3.7 inches in diameter. Please check your hot tent stove pipe size before purchasing. [Fire Resistant Silicone Fiberglass] Made from high-quality fiberglass, this hot tent stove jack is flame-retardant and heat resistant up to 572°F (300°C), helping protect your tent from heat damage caused by the stove pipe. It is recommended for use with wood-burning stoves in tents. [Removable and Replaceable] Designed with self-adhesive fasteners, the stove jack can be easily removed without damaging your tent. It can be replaced if damaged. [Easy to Use] Featuring strong self-adhesive nylon fasteners, the stove jack attaches directly to your tent’s designated opening. If your tent does not have compatible fasteners, the jack can be sewn on for secure installation. Installs quickly in minutes. [Durability] Constructed from premium fiberglass with reinforced ing, this chimney jack is tear-resistant, sturdy, and built to last for long-term outdoor use. Size: 9.4 cm (3.7 inch) round hole, 23 cm x 20 cm (9 x 7.8 inches) Material: Fiberglass Color: White + Black Package Includes: 1 x Hot Tent Stove Jack Note: Light reflection and display differences may cause slight color variation between the image and actual item. Measurement allows an error of +/- 1-3 cm.