Thank you for viewing this item. This is a Pyrex source pan (ultra-heat resistant glass container) made by Iwaki Glass. It can be used for multiple purposes: freezing/storage → gas stove/oven/microwave → dining table. It can withstand dry heating and is suitable for direct heat, ovens, and microwaves. The size is 3 liters in capacity, 22cm in diameter, and 10cm in height, with a good depth, making it useful for various dishes. There is a white dot, about 1mm in size, on the glass lid, which I believe was there from the beginning. This is a new, unused item, but it has been stored at home for a long time, so please understand. Due to the deterioration of the outer box, it will be carefully packed and shipped in a recycled box. Thank you for viewing.