Safe and stable material Made from long lasting PE material that is non toxic and BPA Leak proof design ensures safe use for food storage Sturdy construction withstands compression without cracking or leaking Compact and portable design Size: 4.7 x 3.0 x 0.8 inches Slim and lightweight, easily fits into standard lunch boxes, coolers, and lunch bags Space saving without adding unnecessary weight Eco friendly and reusable Freezer blocks can be reused hundreds of times Reduces waste compared with disposable ice bags A sustainable choice for keeping foods and drinks cool Versatile everyday use Compatible with coolers, swamp coolers, refrigerators Also suitable as a picnic accessory for outdoor meals Designed to add convenience to daily meal prep and outdoor adventures Use scenarios Daily lunch and meal prep: keep perishable items like sandwiches, salads, or yogurt cold during commutes and in work settings Outdoor outings: maintain cold drinks and snacks during picnics, sports events, or road trips Home and storage: use in refrigerators or cooler spaces to extend cooling time for groceries and leftovers