Inspired by Montessori and Waldorf's emphasis on nature and order, this set of 8 wooden planet solar system stacking ring with bouncy peg (sun based) is a great baby, toddler, and pre-school toy to enhance your child's fine motor skills, ability to focus, and hand-eye coordination. While younger children can use this toy to improve their holding, aiming, and stacking skills, older children can practice their size differentiation and knowledge of our solar system and planets. This toy is a great addition to your home, home-school, classroom, playroom, nursery decor, or your Montessori shelf! There are 2 ways to play: 1. Sort planets based on size, 2. Stack planets based on distance to sun. Product Dimensions: 13.7 x 13.7 x 15 cm Package Dimensions: 22 x 30 x 13 cm Weight: 0.7KG Features Inserts learning about the solar system Practice hand-eye coordination Practice the control of the large muscles Learn about colours, sizes, shapes Help your child to concentrate on more focused and still mind Practice observation and memory Made of non-toxic materials. Safe for small children