Premier Elite Serving Bowl features Double walled stainless steel to keep the food fresh and hot or cold for long hours. Both the inside and outside walls are made of stainless steel material. Premier serving bowl comes with an easy locking system which requires you to simply twist the lid in place. This locking system will secure your food and retain the temperature of the food The sturdy handle helps you to easily move the Serving bowl around the table. The ergonomic top handle helps you to open the serving bowl at ease.