It is a sponge made up to the natural belly. The eco-friendly sponge that does not emit microplastics is made of 100% natural materials, so it returns to the soil after use. It is hard when it is dry, but by using it with moisture, it becomes familiar to the hand and becomes easier to use. It foams well and removes dirt well. It dries more easily than plastic sponges and is recommended for outdoor activities such as camping.