JETBOIL Zip Purchased in 2020. Used only once for boiling water during a mountain climb. Stored in a well-ventilated area at home. I tested the ignition for this listing, and it works without any problems. The bottom of the inside is slightly discolored due to ignition, and the outer perimeter is also slightly discolored (see image 5). Please feel free to ask if you have any questions. Thank you. --- The following is a quote --- ☆ Product ☆ Product Name: Jet Boil Zip Capacity: 0.8L Weight: Approximately 340g (excluding the included stabilizer 27g and trivet 35g) Size: φ10.4cm x height 16.5cm (when stored) Boiling Time: Approximately 2 minutes 30 seconds (0.5L) Output: 1134kcal/h Gas Consumption: Approximately 65g/h. One "Jetpower 100G" can boil approximately 12L of water. Material: Aluminum alloy (cooker body) Color: Black (BK) ※ Boiling time: Under conditions of ambient temperature 20°C, water temperature 20°C, altitude 64m, and no wind (according to Jetboil). Retail Price: 13,750 yen (tax included) Thank you for viewing.