Have a smooth texture to look and feel similar to natural silk sponge and can be used for anything from smoothing clay in ceramics. Porcelain, pottery or craft projects. Cleaning sponge material: sponge, firm and dense; round shape with smooth and soft texture Easy to rinse out and reuse, great coverage, absorbs and holds water and paint, distributes evenly, great for face painting Shipped compressed to save space, sponges will return to its original form after unpacking(or you can put them exposure to hot air) Round sponge color: yellow; quantity: 4 pcs