[Size]: Base Diameter is 6.3inch. Fits 1.8inch to 3.9inch Outside Pipe Diameter. [High Quality Material]: Constructed of a steel base to prevent rust and cracking. [Function]: The anti scalding stove jack for the firewood stove tube in the tent can prevent tent from being burned. [Fine Workmanship]: Easy to fix to a tent. Great craftsmanship to effectively prevent outdoor fire. [Wide Applications]: Great for use with bell tents, tipi, yurt, cabins, sheds, boats, boathouses, summer homes, workshops, garages, and anything else that needs a flue outlet. Color: B:Orange Material: Silicone + stainless steel Package Contents: 1 x Tent chimney scald protection device 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.