Keycaps are the individual pieces that cover the switches on a keyboard. They are typically made from materials like ABS or PBT plastic and come in various shapes, sizes, and colors. Keycaps serve both functional and aesthetic purposes, allowing users to customize their typing experience and the overall look of their keyboard. Different types of keycaps can affect how a keyboard feels and sounds when typing. For example, mechanical keyboards often use keycaps that are designed for durability and tactile feedback. Additionally, keycap profiles, such as SA or DSA, determine the height and angle of the keys, influencing comfort and usability.