By Michelangelo. Not sure if it was used. Does not appear to have been. If it was, it was used once. The lid still has the protective film. This lid turns your pressure cooker into an air fryer. It works on an instant pot. The lid comes with 8 preset cooking modes: fries, steak, chicken, shrimp, pizza, egg tart, sweet potato, and fish. It uses a 360 degree air circulation technology that makes your food crispy with very little oil. It actually reduces it by 95% less oil and fat than regular deep frying. Includes: air fryer lid, basket, recipe book, silicone pad, tongs, steam rack, and food clip.