Unique Space Gift for Kids - This solar system board is an excellent gift for boys, girls and adults. Designed as an informative STEM learning tool, it's also an exciting piece that's sure to spark a conversation about astronomy, science, and discovery if placed on a coffee table or in an office study. Craftsmanship - The board and removable pieces are hand-sanded, crafted from durable rubberwood and finished in a non-toxic varnish. The board measures 16 x 11 inches and the 8 planets are 1.28-2.3 inches in diameter Safety First - Our Montessori-inspired toys are designed for children aged 3+ and meet or exceed the standards set forth by the American Society for Testing and Materials and U.S. Consumer Product Safety Commission (CPSC). Like all childrens products, this should only be used under adult supervision.