Dishwasher safe (top rack only). Environmentally friendly, free of BPA and Phthalate. Leakproof system. Lightweight and compact with an easy-open latch. Promotes a healthy diet and lifestyle. Leak-proof bento lunch box, environmentally friendly and BPA free. It's light weight and it fits into most little bento world's insulated lunch bags. Suitable for storing food so your little one can take it to school.