Unlike printing, this keycap is created by molding two layers of plastic together. No printing is required. As a result, the key legend will never fade or chip away. ABS keys will eventually shine, however PBT and POM keys will keep their texture even after extensive use. The most common usage for a double-shot keycap is for functionality keys such as F1, F2, etc. These keys are designed to be pressed twice before they are activated. This allows limited access to programs while still providing usability for less tech-savvy users. Double-shot keys can also include color-changing keys or lights. These keys change color when activated or during gameplay/computer use. They can be used as quick visual cues without having to read through a long list of commands. Finally, some gamers will use double-shot keys to bind multiple actions to one button. For example, a gamer might bind "move forward" to the F key and "attack" to the X key. When the F key is pressed once, only moving forward will happen; but if the key is held down, both moves will take place. This technique is called "binding." It allows gamers to perform complex tasks with only one button. Without binding, players would need to use multiple buttons for these functions.