High quality, super durable BPA free food safe materials Leakproof system Designed to hold wet foods (not liquids) Bento style pre portioned compartments to keep food separated Lightweight and compact with an easy-open latch Fun designs and illustrations Compact and easy to fit in standard size lunch bags Easy to clean The tray in both versions of our lunch box are dishwasher safe (Top rack only) Material of the inner tray is imported from USA