This is a handmade item. It can maintain a temperature of 80 degrees Celsius for 2 hours, making it ideal for keeping food warm. A pot with a diameter of about 27 cm will fit inside. It contains over 300 grams of cotton, making it very fluffy and highly effective at retaining heat. It will be slightly compressed for shipping. If using Eco-Mercari shipping, it will be shipped as is! Embroidery thread and buttons are used to prevent the cotton from shifting. Although the cotton is packed in a balanced manner, please understand that this is a handmade item. Pressure cookers are heavy and difficult to take in and out, but since I started using a pot cozy, I stopped using it altogether and got rid of it. Wrapping the pot with a towel and using the pot cozy further increases the heat retention and prevents soiling.