[Appropriate Size] The hot tent stove jack measures 9.1 x 7.9inch with a pre-cut round hole of 3.7inch, suitable for chimney tunnels less than 3.7' in diameter. Please kindly check your hot tent stove pipe's size before purchasing [Fire Resistant Silicone Fiberglass] Made from high-quality fiberglass, our hot tent stove jack is highly flame-retardant with excellent temperature resistance up to 572/300, which can prevent your tent from being burnt by the stove pipe. It is recommended to use it with firewood tents [Removable and Replaceable] Designed with self-adhesive fasteners, the hot tent stove jack is easy to remove without damaging your tent. You can freely remove and replace it with a new one if the stove jack gets damaged [Easy to Use]Featuring a strong self-adhesive nylon fastener, the hot tent stove jack can be directly attached to your tent window which is also designed with a self-adhesive nylon fastener. If your tent doesn't have an adhesive fastener, you can sew the stove jack on it. Quick to install in minutes [Durability ] This hot tent chimney jack is made of premium fiberglass with a delicate stitching process, tear-resistant, strong, and durable to use, which can be used for years to come. size: With 3.7 inch (about 9.4 cm) round hole, 9inch x7.8inch/ 23cm x20cm Material: glass fiber colour: white+black Package Contents: 1 x Hot Tent Stove Jack 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!