The phrase "customization choices" refers to the options or decisions you have to personalize or modify something according to your own preferences or needs.
Sentences with «customization choices»
You also get plenty of customization choices for most of the trims. (carannouncements.com)
You also get plenty of customization choices for both trims. (carannouncements.com)
However this system feels rather basic and there are not many customization choices available to the player. (gearnuke.com)