The Core Collapsible Pizza storage container set includes a collapsible base, 4 microwavable trays, and a snap lid. Made of silicone material in a solid black color, this modern pizza storage container set is designed in a pie shape with a capacity to expand/stack with trays. It features an air vent, is reusable, easy to clean, and safe for use in the freezer, microwave, and dishwasher. This unit, branded under The Perfect Pizza Pack ™, is perfect for storing and transporting pizza slices in an organized and convenient manner.  Opened Box. Product says 5 trays, but there are only 4 inside.