The Buruni Leak Resistant Two Tier Lunch Box is made from robust stainless steel. It has a great technical robustness to it. Truly form follows function. The aesthetic component of the Buruni does not interfere with the function, it enhances it. The solid clunk of the spring clips as they clamp down the two tiers together, squashing the silicone seal to help prevent leakage. It is a super and practical lunch box for all ages. A quick rinse and dry and it is good as new. Nothing to throw away; no plastic. With modest care it will last a generation. Specifications Material: Silicone seal; Stainless Steel (201) with brass rivets in clips Care Instructions: Dishwasher Safe Size: Bottom Layer - 600 ml / 4.5 x 16.5 x 12.5cm Size: Top Layer - 700 ml / 4.5 x 16.5 x 12.5cm Size: Overall Dimensions - 1300 ml / 8 x 17 x 13cm Weight: 450g Country of Origin: India Story Products that help to make your life a little bit greener, one slice at a time. In recent years consumers have become aware of the impact of the disposable culture we live in and want to try and live a more sustainable lifestyle. We designed A Slice of Green to offer a stylish range of reusable products that can help people work towards this. All of the products are functional and simple to use so are easy to adopt into everyday life. All of our products are made in India and we work directly with producers rather than through agents or export houses. We have developed strong relationships with our producers, visiting their production sites around India (and seeing some wonderful sights too!).