Features: 1.Reusable and Long-Lasting: Our freezer box is designed with a leak-proof and durable construction, making it reusable and long-lasting. It ensures that your fresh food stays frozen for an extended period, providing convenience and peace of mind. 2.Quick Cooling Performance: Our heavy-duty ice packs are specially designed to provide quick cooling. They efficiently lower the temperature of your lunch bag, keeping your food fresh and cool for hours. Perfect for office, school, outdoor activities, and camping. 3.Excellent Sealing Performance: Our freezer box features a good sealing performance, ensuring that no air or moisture can enter. This helps to maintain the optimal temperature inside, keeping your food fresh and preventing any spoilage. 4.Versatile and Convenient: Our frozen ice pack box is not only suitable for storing fresh food but also perfect for shipping frozen items. Its reusable nature makes it an eco-friendly alternative to disposable cooling packs. It is compact and lightweight, making it easy to carry for office, school, or outdoor use. 5.Compatible with Lunch Bags and Coolers: Our freezer box is designed to fit perfectly inside kids& 39; lunch boxes, insulated lunch bags, and tote bags coolers. It provides an ideal cooling solution for keeping your meals fresh and delicious throughout the day. Specifications: Material: HDPE Size: 16X11X1.5cm Caoacity: 200ml Notice: 1.Actual color may be slightly different from the image due to light effect. 2.Please allow 1-3cm deviation due to manual measurement.