Pack of 4 Synthetic sponges for working with clay, crafts, and art paints. Made of dense foam with smooth edge in round shape, soft and easy to cut in half and hold paint well Each individual craft sponge is 2.75 inch in diameter, 0.8 inch in thickness, good size to hold well by hands for painting Great for face painting, leather tack cleaning and conditioning, applying paint in household or craft projects to washing dishes Warm tip: The sponges initially came a little bunched up and deformed. Because they are compressed to save space so that make it easier to be packed and shipped. Simply wash the sponges with dish soap and air dried, once they absorb the water they will return to a circular shape.