Tupperware Stuffables Square Storage Container 16191–2. 1.2 Liter The Tupperware Stuffables Square Storage Container 16191-2 is a versatile kitchen storage solution with a square shape, making it easy to stack and organize in tight spaces. With dimensions of 7" x 7" x 2.5", this 1.2 liter container is perfect for storing a variety of items in your kitchen.