KULLERBU - STEP BY STEP MARBLE RUN

Grow, build, and discover with the Kullerbü Step by Step Marble Run! Designed to grow alongside your child, this versatile STEM playset offers exciting marble run adventures for every stage of development. Watch the large ball race through rattling curves, speed through the bell tunnel, and knock over building blocks for an action-packed finish. With 11 step-by-step track layouts, children can start with simple designs and gradually build more complex courses as their confidence and skills develop. The clever click system ensures sturdy, wobble-free construction for hours of creative play.

Why you'll love this STEM playset:

• Grows with your child: Features 11 progressive builds that match different developmental stages from 1 year and up.
• STEM learning through play: Encourages engineering, problem-solving, cause-and-effect, and creative experimentation.
• Creative building fun: Children can redesign tracks and even use everyday objects like books to create tunnels and extensions.
• Stable click system: Easy-to-build tracks stay securely in place for frustration-free play.
• Develops essential skills: Strengthens fine motor skills, spatial awareness, logical thinking, and creativity through hands-on building.

Key Features:

• Includes: 37 pieces featuring 2 large Kullerbü balls, rattling curves, a bell tunnel, ramps, straight and curved tracks, building blocks, connectors, columns, and an illustrated booklet with 11 step-by-step track layouts.
• Dimensions: Measures 38 × 38 × 13 cm. Balls measure 2" in diameter, perfectly sized for little hands.

At HABA, we take our commitment to children and families very seriously. We believe only the highest quality and safest toys will do. That is why we are dedicated to sustainability, product testing and quality control in everything we make.

• HABA is certified under DIN EN ISO 9001, which means we have successfully introduced a quality assurance program and apply it consistently. This applies to product development, purchasing, production and assembly as well as marketing.
• All materials we use are subject to continuous controls. They are also tested for adherence to all guidelines by authorized, independent institutions.
• HABA has borne the PEFC seal since 2010, which affirms that we use timber from sustainable forests. We support continual environmental management under DIN ISO 14001.
• All suppliers and subcontractors are expected to behave responsibly. We make no compromises on the basic requirements of safety and human rights. All partners are expected to adhere to the social standards under BCSI, SA 8000, or ICTI. Adherence to these standards is monitored on site at our suppliers’ factories.
• Children's safety is our #1 priority. Our toys meet all European and American standard for materials and processing. A quality and safety team sits with our designers to ensure safety in materials and design from the very beginning of work on a new product. Before shipment to the USA, products are tested both in-house and by a third-party CPSC authorized laboratory to ensure they meet and/or exceed US safety specifications.