Non-Toxic Quick Freeze for Stylish Lunch Boxes. Made in neutral colors, perfectly matching our stylish lunch bags. Ideal for lunch boxes, insulated bags, coolers, beach totes, and grocery totes. Unit Quantity: 4 count Main Purpose: Keep Food Fresh,Keep Drinks Cold,Maintain Temperature Material: Plastic,BPA-free Plastic,Durable Plastic Features: Reusable,Freezer Safe,Leak Resistant,Lightweight,Durable,Break Resistant.