INTRO You've likely thrown away hundreds of plastic zip top bags in your lifetime. It's time to take a leap forward into a more environmentally-friendly lifestyle with Stasher storage bags: they're BPA-free, self-sealing and airtight, like your beloved ziptops, but they're made of an extra-durable silicone for use over and over again. You can wash them in the dishwasher between lunches (the non-porous surface helps inhibit bacterial growth). Use them to cook in the microwave, for sous vide cooking, for freezing or as toiletries bag for an airplane trip! Oh, and if you want you can actually write on it with dry erase markers - think of those who suffer with allergies and need to know exactly what's inside each bag! DETAILS & MATERIALS - 100% pure platinum food grade silicone - Sandwich bag is 7.5" H x 7.5" L x 1" W and holds 15 fluid ounces (approx. 430ml) - BPA-free, no petroleum, PEVA, PVC/latex, vinyl, phalates, chlorine or other toxins - Pinch-loc seal CARE INSTRUCTIONS Dishwasher safe, freezer safe, and microwave safe. COMPANY PROFILE Stasher is revolutionizing the lunch bag with the first-ever reusable, self-sealing, airtight storage bags. Creator Kat Nouri had her a-ha moment while making a sandwich (funny, that's when we have our good ideas, too!) and created these silicone wonders that fight against the millions of pounds of plastic that end up in landfills every year.