This children piano is made of MDF and birch wood which is sturdy and stable. Surface with environmentally friendly children's paint is safe without endangering the health of kids. The rear cover is supported with safety hinge to provide better protection for children. 30 keys piano with pleasant sound can promote the development of children's brains while exercising the flexibility of their fingers. And your encouragement and companionship will stimulate children's interests in music. If you are looking for a piano for your kids don't hesitate to buy it! --Safe and environmentally friendly materials without harming children's health --Promote children's brain development exercise finger flexibility stimulate children's imagination --Elegant and delicate appearance to attract children's interests --Triangular structure for better stability --Support with safety hinge to fix the rear cover --Child-friendly curved angle design to prevent children from bruising --Smooth surface will not scratch children's skin --No electricity required for security --Easy to clean with soft cloth --Suitable for children from 3 - 8 years old