COLORFIN-Sofft Art Sponges. Use these artist's quality sponges to paint, blend, and draw! They are reusable and feature micropore technology. Use them with PanPastels, water-based colors, polymer clays, and ceramics to create unique techniques and effects. This package contains four approximately 2x1x1/2 inch sponges (1 each of wedge, point, round, and flat). Mediums all sold separately. Imported.