6 Brushes For Fine & Detailed Blending. Ergonomically designed ink blending brushes created for easy application of all water-based ink. Clean with gentle soap and water. Brush heads are approximately 0.25 x 0.25, 0.25 x 0.25, 0.0625 x 0.5, 0.0625 x 0.75, 0.0625 x 1 and 0.5 x 0.75 inches.