The term "PCS" in the context of makeup brushes usually refers to "pieces" or "units." So, when someone mentions "PCS makeup brushes," they are likely referring to a set of makeup brushes with a certain number of pieces or units in the set. Makeup brush sets often come with various types and sizes of brushes for different makeup applications.

For example, a "10 PCS makeup brush set" would mean a set that includes 10 individual brushes designed for various purposes, such as foundation application, eyeshadow blending, contouring, and more. The specific brushes included in a set can vary, but common ones might include:

1. Foundation brush
2. Powder brush
3. Blush brush
4. Eyeshadow brushes (multiple sizes)
5. Eyeliner brush
6. Brow brush
7. Lip brush
8. Contour brush

When choosing a makeup brush set, it's essential to consider your specific makeup needs and preferences. Different brush sets cater to various makeup styles and applications. Additionally, the quality of the brushes, the materials used, and the brand can influence the performance and durability of the brushes.