100% Original Lock&Lock Glass hpl931n 470ml mixing cup One Touch Mixer sports cup shake Water Bottle AQUA cup can be used in microwave oven on low heat, refrigerator. By the Applied Research Laboratories of the Korean daily heat cold tolerance test and access to health, stability quality. the use of ISO 9001 certification, the U.S. FDA, Germany, SGS certification by the stability of (all), the sanitary inspection of raw materials. Quality Assurance Association for the specified book (the Q-Mark), health safety quality certification (HS-Mark). The box locking device, through the one million times the bending test without any exception.