1. [PACK OF 4]Each silicone ice cube tray for the zer produces 14 generously-sized cubes, resulting in a total of 56 ice cubes across four trays. These large ice cube trays a capacity of 27 ml or 1 ounce per cube, making them perfect for creating reusable ice cubes. 2. [COVERED CONVENIENCE] Ice cube trays for the zer come with removable lids and lid lifters, ensuring spill- ice production and odor prevention. They can be stacked efficiently to save space and keep your zer organized. This ice tray with a lid prevents excess water from zing and ice cubes from absorbing odors, maintaining a clean and efficient zer. 3. [Easy to Release]The ice tray creatively combines plastic and silicone. The top half of the tray is made of plastic which helps maintain its shape unlike full silicone trays. And the silicone bottom makes it super easy to release the ice. Thus, unlike old rigid plastic trays, there's no fighting and twisting to get the ice out. 4. [USER & DISHWASHER FRIENDLY] Add water, secure the lid, and place the trays in the zer. These silicone ice trays are versatile; allowing you to infuse them with fruits, soda, cocktails or iced coffee for a personalized taste experience. One thing to note is that it's better to wait about 40 seconds before opening the lid when it's frozen so that opening could be effortless. Besides this tray is super easy to clean and dishwasher .