Art sponges comes in assorted shapes. Can be used 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. Just load the sponge with color and gently apply to the surface. Vary the pressure to change the effect or use the edges for lines or details. They may be cleaned with soap and water. Measures 2-inch length by 1-inch width by 1/2-inch height. Comes in 3 sponges per pack.