After researching, I realized that this is just a smaller version of the Color Brush and uses the same nylon bristles

The nylon bristles are quite springy and have a learning curve if you're looking at getting one of these from a felt tip, like the Copic multiliner

I've found those to be far less durable than this pen, which has a tip made of actual nylon bristles

The nylon bristles are just the right balance of stiff and soft

I really think this pen was a great ut i and I will buy again.