Lunch Box Have Thermal Insulated Double Layers Stainless Steel Reusable Freezer Safe, With Dual Compartment Portion Snack Containers For Adults And Kids. Our Lunch Box Have Two Method To Use, First Is 304 Stainless Steel Trays Have 4 Lunch Containers To Divide Your Delicious Meal; And Second Method Is Remove 304 Stainless Steel Tray And Use Our Polypropylene (Pp) Trays To Storage Large Serving Food. Our Lunch Organizer Container Have 4 Side Lock Buckles, Whether You Use Stainless Steel Tray Or Polypropylene Bottom Tray. Easy To Carry As Well As Keep Food Fresh And Tasty.