All product materials are safe and non‑toxic. The brush head is made of sponge, which is soft, comfortable, reusable, easy to clean and dry. This suit is suitable for young artists aged 2‑6 years, and explore the different patterns and shapes they can create with tools. The extra waterproof apron can protect your child's clothes from getting dirty, bringing more convenience to you and your child. This set of sponge paint brushes come in a variety of brush shapes and sizes. Drawing exercises can help children strengthen hand muscles and develop fine motor skills. Small and light in weight, and easy to carry, including painting tools, you can cultivate children's interest from an early age.