BUILT NY Bento Designer Neoprene Sandwich Box, Black (BNT01-BLK) The neoprene sleeve insulates food for 4 hours to keep your lunch or snack at just the right temperature. Zipper closure keeps it secure. Multi-compartment dishwasher-safe reusable container helps cut down on waste. It's ideal for work, school, or travel. Made with PVC-free and BPA-free food-safe materials, tested for lead safety and phthalates. Available in a wide variety of patterns, including our most popular designs (to coordinate perfectly with your BUILT lunch tote). Machine-washable, so if you make a mess, it's no problem. Simply toss in the washing machine to make it look like new. 6 inches by 5 1/2 inches. Neoprene Bento Sandwich Box, Black Zipper closure Made from food safe materials, tested for lead safety and phthalates; PVC, BPA, latex and vinyl-free Insulated neoprene sleeve with sandwich container (included); insulates for up to four hours (time varies depending on external temperatures) Measures 5-1/2-inches wide by 2-1/2-inches long by 2-3/4-inches high