Our product is completely made of stainless steel , minimum food contact with plastic, a great alternative to plastic and melamine containers, BPA free || Non-Toxic || Chemical Free || Non-Breakable Clips, Leak-Proof design for non-mess carrying experience, the product has a glossy finish inside  and matte finish outside for no finger prints. Made with Food-grade Stainless Steel these containers areon the outer surface recyclable stackable and top-rack dishwasher safe, best for storage of food.