Housoutil Reusable Ice Packs, 4pcs Reusable Ice Blocks for Portable Air Conditioner Medium Freezable Cooling Packs for Evaporative Cooler Lunch Box Fan

["Instant Chilling Effect: Simply freeze these Reusable Ice Packs for Air Conditioner Fan to rapidly lower room temperatures and enjoy a refresh breeze during intense summer heat","Continuous Cooling Rotation: This 4 piece set lets you easily swap out an ice pack air conditioner insert ensuring your indoor space stays comfortably chilled without long waiting times","Compact Medium Profile: Measuring 4.72x2.95x0.78 inches these perfectly sized Ice Blocks for Cooler easily slide into small lunch boxes or tight fan tanks leaving ample space for your food","Secure Leakproof Exterior: Designed with a sealed hard shell these dependable ice packs for ac cooler units prevent messy water leaks effectively protecting your meals and electronic devices","Multi Scenario Utility: Beyond serving as an ice pack for portable air condition setups or an ice pack for air conditioner systems they excel at chilling picnic bags and travel"]