This insulated bag set includes four practical bags designed to keep foods at the right temperature during transport and service. 1. Heat bag for warm foods - Unique design with a stylish and attractive appearance - Practical and waterproof outer material - Easy to use and maintain - Thermal insulation suitable for keeping warm meals 2. Take-away thermal bag - Zipper closure design for secure and convenient access - Useful and practical for on-the-go meals - Suitable as a pizza bag to transport hot items 3. Round insulated bag - Waterproof and practical - Features a unique inner layer to help keep cakes fresh - Round insulated shape for versatile item placement 4. Take-away insulated bag - Zipper design for secure storage - Fine stitching for durability and reliable use - Cooling bag suitable for food service and take-away applications Use scenarios - Daily commute or office lunch: use the heat bag for hot meals or the take-away thermal bag to transport salads, sandwiches, or other ready-to-eat items while maintaining temperature. - Pizza transport: the take-away thermal bag or pizza bag design helps keep pizza hot and convenient for pickup or delivery. - Cake or bakery items: the round insulated bag with its inner layer helps keep cakes fresh during transport for events, catering, or storefront pickup. This description reflects the four bag designs, their practical features, and typical applications for reliable, professional food transport and service.