This is a cup holder organiser for the Skoda Superb 3 (2021). It is designed to prevent your thin hand sanitiser bottle from rolling around in your cup holder, and has a slot for a 2 EUR coin, which is perfect for shopping trolleys.
It can also be used to hold credit cards, gate openers, your car key remote and other items. However, it is best to use heat-resistant filaments for car use, such as PET-G / coPET.