Acrylic Paint Brush Set, 24 Pieces Paint Brushes for Acrylic Painting with Cloth Roll Case and 2 Sponges, Pinceles para Acrilico for Oil Watercolor Gouache…. High Quality Nylon BristlesWe selected premium nylon hair from hundreds of different nylon raw materials to ensure that it’s elasticity and properties in water uptake and speed is ahead of other artist paint brushes.