These bags will become your new go-to storage for all types of food! Their uses are limitless--cooking, storing, freezing, reuse over and over--all the convenience of traditional ziplock bags, in an eco-friendly, dishwasher-safe, sturdier version. At first, slider seals may be tight, but become easier to use. This ensures the best airtight seal, keeping your food and liquids fresh. Many uses--can withstand being placed in boiling water for cooking, microwave, and freezer. Great for on-the-go snacks and meals, as well as storing food without smells in your refrigerator! Made of FDA food grade silicone, BPA free.