I opened it once, but I haven't used it and have kept it in the box. The product itself is unused, but please refrain from purchasing if you have any reservations due to it being opened once. This is a silicone kitchen countertop protection mat. It has antibacterial properties and protects against scratches and stains. It has a non-slip feature to prevent it from shifting, and its 2mm thickness creates minimal height difference, allowing for flat use. I purchased it on Amazon for 4490 yen. It's an off-white, antibacterial model from the manufacturer SAKuRAKu. ▫️Heat resistance: 220°C ▫️Cold resistance: -50°C ▫️Size: 80cm x 60cm, Thickness 2mm ※Please refrain from purchasing if you are concerned about home storage. ※Available for immediate purchase, so priority will be given to the first person to buy.