Our eco friendly silicone lunchboxes are perfect for everyone and are leakproof. They are made of food grade silicone and are BPA free. They are 18cm by 13cm and have a height of 5.5cm (7 inches by 5 inches and height of 2 inches). The lunchboxes have built in dividers. One large divider, which can hold 300ml and two smaller ones that can hold 150ml each. In total, the total volume is 600ml. The lunchboxes are water tight and are constructed of heavy duty silicone food grade material and withstand everyday use. They are very sturdy in terms of construction and are built to last. These come in a number of colours, and fit snugly into a school bag, backpack or purse. Silicone is a lot more long lasting that plastic and so is much better for the environment.