The X-Bowl is constructed from a flexible European standard compliant, food grade, silicone upper that is securely bonded by a patent pending process to a rigid, cut resistant base made of high temperature, food grade Nylon. It folds flat for compact packing and has metric measurement increments on the inside. The flexible sides make pouring easy.FEATURES: Easy pouring, flexible, versatile shape Measurement increments on the inside Cut resistant base for chopping Folds flat for compact packing Food grade flexible silicone Stable rigid base BPA free