Grimm's Set of Wooden Balls - Rainbow

The Grimm's Rainbow Set of Wooden Balls is a beautifully simple addition to open-ended wooden play. Crafted from solid maple wood and stained with certified non-toxic, water-based colour, each ball retains the natural warmth and texture of the wood. Grimm’s avoids lacquer and paint, preserving both safety and sensory integrity in line with Waldorf and Montessori principles.

Each set includes six wooden balls, 4.5 cm in diameter — perfectly sized for small hands to grasp, roll, and guide.

These rainbow balls are especially engaging when paired with the Grimm's 12 Piece Rainbow. Children intuitively discover how to build simple and complex ball runs, experimenting with height, angle, speed, and distance. As they adjust the arches to guide the rolling balls, they explore early physics concepts through direct experience.

They also integrate beautifully with large marble runs, building sets, and sorting activities. Children can match colours, practice counting, explore sequencing, or create patterns. Rolling the balls across different surfaces invites sensory discovery and coordination development.

This is the kind of toy that evolves naturally with your child’s abilities - from simple rolling and grasping at age one to more intricate constructions in later years. Thoughtfully made and intentionally chosen, these wooden balls encourage focused play, problem-solving, and creativity grounded in natural materials. Find everything you need to know about Grimm’s is in our full guide.