DOITOOL 4 Pcs Reusable Ice Packs for Cooler, Ice Packs for Lunch Box, Freezer Blocks for Camping, Outdoor, Office Use

["Eco-Friendly and Energy-Efficient Design: Made with PE material and free from refrigerants, these reusable ice packs offer a sustainable cooling option with low energy consumption","Quiet Operation for : Engineered to operate silently, these ice packs will not interrupt your rest or work environments while providing effective cooling","Advanced Ice : Designed with ice crystal packs that freeze quickly and maintain cold temperatures longer to keep your food and drinks fresh during hot days","Multi-Functional Cooling Solution: These ice packs combine ice block, air conditioner, and fan features to deliver rapid and lasting cooling for various uses including lunch boxes and portable coolers","Compact and Easy to Carry: Measuring 6.10 by 4.52 by 0.98 inches and lightweight, these reusable ice packs are convenient for home, office, camping, and outdoor activities"]