2-in-1 ice cube tray with a lid and a straw. It combines the functionality of an ice cube tray with a water bottle, allowing users to make ice directly in the bottle.

Here are some key features and benefits of ice cube trays with lids:

Spill Prevention: Lids help prevent water from spilling while transferring the tray to the freezer. 

Odor Protection: Lids prevent ice cubes from absorbing unwanted odors in the freezer. 

Stackability: Lidded trays can be stacked, saving freezer space. 

Versatility: Beyond water, ice trays can be used for freezing coffee, chocolate, baby food, and more. 

Easy Release: Flexible silicone trays allow for easy ice cube removal. 

Convenience: Some designs include a built-in storage bin for the ice cubes. 

This particular 2-in-1 design offers additional benefits:

Hydration: The straw encourages regular sips, promoting better hydration. 

Portability: The design is convenient for carrying and keeping beverages cold on the go. 

Unique Design: The ability to make ice cubes directly in the bottle is a unique and practical feature.