Purchased around 2020, used a few times, and then stored on a shelf without use. I don't remember the exact number of times I used it, but I think it was around 10 times. It appears to be free of any damaged parts, major scratches, or stains, but the operation has not been confirmed. I haven't used it recently, so please understand this. There is a manual, but I have only kept the parts about how to use it and precautions. (I think there was a recipe book, but I cut out the recipe part and disposed of it because it was in the way of storage.) 【Aluminum】 Fluorine coating on the inside Compatible with all heat sources Low-pressure/high-pressure pressure switching type Easy opening and closing with one finger. The lid can be closed from any 360-degree direction. Recipe book included Product Overview/Specifications ■Product size (approx.): Width 355 x Depth 260 x Height 205mm (bottom thickness 5.0mm) ■Weight (approx.): 2933g ■Material: Body: Aluminum alloy, Bottom: Stainless steel (chromium 16%), Lid: 18-8 stainless steel, Handle: Phenolic resin (heat resistance 150 degrees) Surface treatment/Inside: Fluorine resin coating, Outside: Baked paint #Pearl Metal Pearl Metal NEW Aluminum IH Compatible One-Touch Lever Switching Pressure Cooker 4.2L (Fluorine Coating Inside) HB-3296 Brand: Pearl Metal *Price reduction is not possible.