High-concerned chemical: None Model: SK257 Type: Gas Stove Material: Metal Structure: SPLIT Usage Condition: Normal Outdoor Fuel: Butane With Ignition Device or Not: Included Disposable: No Brand Name: bisinna Origin: Mainland China Attention!!! Gas tank must not be placed upside down or horizontally, which will cause the fire to be extremely intense. So please place the gas tank upright when using.