Silicone tolerance is about 280 degrees Suitable for chimney: 4.5-10cm (more than 4.5cm, you need to cut the rubber ring by yourself) same) Method of use: (1) Open the tent chimney hole: 1. Determine the position of the chimney mouth on the tent, 2 .Mark the position of the screw hole on the chimney mouth according to the circular steel sheet and open the hole. (2) According to the circular steel sheet of the silicone sleeve, cut two materials wear-resistant materials with the same shape as the steel plate (thick cloth can also be used instead) This step can also be omitted, but adding wear-resistant materials wear can better protect the tent from wear (3) Put the cut wear-resistant material and the steel sheet inside the tent opening and insert the screws from the inside to the screw holes. (4) Put strong materials wear-proof, silicone eves, and steel sheets in sequence outside, and tighten the screws with nuts to secure them. (5) Cut the tent fabric at the inside the silicone ring to complete the opening (6) After installation, insert it into the chimney and use it. When the diameter of the chimney is more than 4.5cm, you can cut the silicone ring yourself! Safety protectionIt can prevent the hot chimney pipe from directly touching your tent or your shelter, and prevent the high temperature from igniting the tent and causing a fire. Sturdy and durableThis tent chimney insulation blanket is made of high quality environmentally friendly silicone. 'environmental, wear-resistant and high temperature resistant, not easy to damage or deform, and the steel floor is not easy to rust and is very durable. Wind and waterproof Our tent stove jacket kit has good weather, water, wind and UV protection, it is perfect for outdoor use, whatever the weather or season. VERSATILE USEThis handy tent stove jack kit can be used in a variety of places and can be combined with c bell tents, tents, yurts, cabins, shelters, boats, barges, summer houses, workshops, garages and any other need. place is used in conjunction with something that uses a flue.