Purchased in February 2025, but I'm selling it because I haven't had a chance to use it. There is a slight tear in the paper part in the lower left of the fourth image, but it is unused ★ A 450mL sandwich case made of platinum silicone, microwave and oven safe. - Brand: stasher - Capacity: 450mL - Heat resistance: 250℃ - Cold resistance: -18℃ Thank you for looking.