1. Perfect double airtight. - Prevent the smell of refrigerator and keep food fresh. 2. Slim shape. - Okay small refrigerator, freezes faster. 3. Easy separation. - Press down on the floor, the contents will come out. 4. Platinum silicone - Produced in Korea, sterilized with hot water, and certified for various safety. 5. 4 Pastel Color - Choose according to ingredients and preference. 6. Various uses - Can be used in various situations such as baby food, ice, coffee cube, ingredients, etc.