The GK Hair Extra round brush is a styling tool designed for use on all hair types, including coarse, curly, and frizzy hair. The bristles of the brush are made from a high-quality nylon material, which is gentle on the hair and also helps to detangle hair while styling. The extra large barrel size is perfect for creating voluminous, bouncy curls and waves. The ergonomic handle is comfortable to hold and provides a secure grip, making it easy to control and manipulate the brush while styling. Overall, the GK Hair Extra round brush is a versatile and effective tool for achieving a variety of hair styles.