OK: This is easy to review. If you have an Apple Airtag you need, absolutely need, to buy this. Immediately. Before you actually need to change the battery. Why? Because the battery-changing on an Airtag is the very worst of very few design errors that Apple has ever made in a long history of success. Changing an Airtag battery without this is a nightmare come true. Easy Peasy with it! am not related to the seller here or make any money off the purchase of these amazingly designed suction cups.