This is a genuine Tupperware product. It opens and closes with a single touch. In our home, we use it as a lunch case for rice balls and sandwiches, and also to store our personal seals (inkan) and seal registration cards. The blue container can store the red one completely. The Tupperware logo is on the opening and closing mechanism. Features a clear lock mechanism. - Colors: Blue, Red - Sizes: Large: Approximately 14cm x 11cm Small: Approximately 12.5cm x 10cm - The locks open and close smoothly. Thank you for looking.