It won’t build up pressure or the lid won’t lock, making it impossible to use. Unfortunately I did not save the box it was shipped in because I did not anticipate any problems since all of my other purchases from WayFair have exceeded my expectations. I am unable to use this pressure cooker bc it won’t built up steampressure. I would like to return this item for a refund to my account since I have had to order another instant pot pressure. I purchased the new one from Wayfair too.