This is a handmade item. It can maintain 80 degrees Celsius for 2 hours, making it ideal for keeping food warm. The cushion is about 30 centimeters in diameter. A pot with a diameter of 27 centimeters will fit inside. It contains over 300 grams of cotton, making it very fluffy and highly effective at retaining heat. Including the cushion, it contains over 400 grams. Shipping will involve some compression. If using Eco-Mercari shipping, it will be shipped as is! The cotton is secured with embroidery thread and buttons to prevent shifting. The cotton is packed in a balanced manner, but please understand that this is a handmade item. Pressure cookers are heavy and difficult to take out and put away, but since I started using a pot cozy, I no longer use them and have gotten rid of mine. Wrapping the pot in a towel and using a pot cozy further increases the heat retention and prevents soiling. Questions are welcome. Thank you.