Amazon Basics Reusable Hard Sided Rectangular Ice Pack, 6.5" X 4.3" X 1.2", Blue, Pack of 4

Key features

• 4-pack of hard-sided rectangular ice packs for temporary cold storage of food, beverages, perishables, and more; dimensions measure 6.5 x 4.3 x 1.2 inches
• Heavy-duty BPA-free plastic casing for leak-free durability
• Place in coolers, lunch boxes, bags, storage cases, and more to keep items cold
• Slim, lightweight design allows for easy, unobtrusive placement in any carrying container
• Stays cold for hours; prepare ahead of time in home freezer by laying pack flat for 8 hours or more
• Recommended to hand-wash before each use with mild dishwashing detergent; air dry or dry with a soft cloth