1. Round sponge: Diameter :2.96 inches / 7.5 cm; Thickness :1.18 inches / 2 cm, easy to master, for painting, watercolor, crafts, pottery, clay.2. Suitable for children: Painted sponge is easy to use. Children can improve their drawing skills and imagination by using sponge painting. Even if too much watercolor pigment is absorbed, its strong absorption will not overflow and can be used safely.3. Coating sponge with strong water absorption: made of sponge to ensure that the coating sponge is durable, not easy to deform, high elasticity and strong water absorption.4. Packaging :12 round watercolor sponge painting artist sponges. Easy to clean, clean in time after use, can be used repeatedly.5. Application: Suitable for acrylic, oil painting, watercolor, dyed or painted fabric, wall, clay cleaning and home cleaning. Sponges can recover after soaking in water.