This furnace arm measures 3 "x 3", portable light large burner, classic camping and backpacking furnace. This is a necessity for camping/backpacking/hiking/emergency/bicycle packing. The furnace weighs 8.8oz/250g, is small, foldable and does not occupy much space. Easy to install and tighten the container in one minute or less. It is very suitable for backpacking, hiking, outdoor camping, etc Strong and large working area: It is very stable because the can can be folded very wide. You don't have to worry about the pot or the tilt of the pot. With the increase of its size and weight, its stability is stronger, its cooking surface is larger, and its use is wider. The handle of the control valve allows you to easily adjust the height of the flame. Stable, efficient, powerful, stable flame adjustment, easy to use. Problem: The platform on this furnace is unstable; Answer: When installing the furnace, please ensure that it is installed correctly.