Solid wood construction and durable water paint finish non-toxic also the round corner without wood dust. Completely child safe and exceed international safety standard. Multiple playing way, select and name the geometric shape or color, stacking the block puzzle and march it in right place (posts that fits the hole of the blocks) etc.; Great Toys: Great brain stimulating toys, teaches about colors, shapes, matching, logic, fine motor skills , inspire toddler's imagination, hand-eye coordination and promote their physical and intellectual development.Designed for 1 to 6 age group children.