Safe material: Made of plastic material, which is durable and lasting for use. Giving: DNA - RNA model can cultivate children's interest in learning and is a good gift for children's early education. Educational toy: DNA Model Spiral Teaching Equipment a nice students educational toy that helps to get to close to science. Applies for Teaching: DNA Model Spiral Teaching Equipment is a demonstration model of biology teaching in middle schools. DIY assembly toy: Kids DNA Model train your children observation capability, thinking and analytical skills. Promote brain development. And cultivate children's interest in science and biological knowledge. Description: Kids DNA Model train your children observation capability, thinking and analytical skills. Promote brain development. And cultivate children's interest in science and biological knowledge. It is a good gift for children's early education. Features: DNA Model -Color: As shown -Material: plastic -Size: 12.5x17 cm/4.92x6.69 inch. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Including 1*DNA Model