Brushes with widely spaced protective pins used on human hair extensions or to gently remove tangles from wet wavy or dry curly hair are?

The choice of vent brushes for working with human hair extensions, particularly on wet wavy or dry curly hair, is appropriate because of their specific design features. Vent brushes are structured with widely spaced bristles that allow for adequate airflow while styling, which can help prevent heat damage when using blow dryers or other styling tools.

These brushes also effectively detangle hair without pulling or breaking strands, making them ideal for managing the unique texture and curl patterns found in wavy and curly hair. The spacing of the pins reduces friction and allows for a gentle glide through hair, making untangling easier and protecting the integrity of both natural and extension hair.

In contrast, other brush types may not provide the same benefits. Square brushes may not have the proper shape or spacing for effective detangling, while double-tooth brushes may focus on specific styling methods rather than general detangling. Tail brushes are typically used for styling and parting hair rather than for detangling purposes. Thus, vent brushes represent the best choice for the scenario described.