I'm a strong believer that you should "buy eco and buy to last" and this plastic free bento box ticks SO many boxes! It can carry anything hot and cold making it perfect for food one the go! This stainless steel bento box from Qwetch is insulated and beautiful! It will keep your chosen food hot for up to 4 hours or cold for up to 6 hours making it the perfect all-rounder! Not only that it arrived in completely plastic free packaging - woohooo! The temperature you put inside will remain the same for a long period of time because there is no transferring of energy to the outer wall. The bottle won’t feel hot, cold or moist on outside due to it’s unique double-wall construction. Please note this is suitable for solids only. MY FAVOURITE FEATURES Suitable for solids only. Keeps 4h Hot / 6h Cold. Bento box with 2 compartments. Double wall: internal and external walls made from stainless steel 304 (18/8). Lid is made of stainless steel 304 (18/8). Internal wall without any coating or lacquer (unlike aluminum containers). Does not alter flavors and taste. BPA free.