What consists of nylon bristles on one end and a pointed tip on the other?

The correct answer is a colour brush. A colour brush is specifically designed for applying hair color, and its unique construction includes nylon bristles that help evenly distribute the product throughout the hair. The pointed tip is particularly useful for sectioning off the hair, allowing for precise application, especially when working with highlights or specific coloring techniques. The use of nylon bristles ensures that the brush can glide smoothly through the hair and effectively pick up and apply color. This dual functionality makes it an essential tool in hairstyling and coloring processes.