Magnetic Gear Tiles 90pc STEM Engineering Set KBCJ-90

HobbyCrazy Premium STEM Engineering Series

Build it. Turn it. Discover how movement works.

The KBCJ-90 takes magnetic construction beyond ordinary building by combining colourful magnetic pieces with gears, spinning discs and rotating components. Children can create towers, structures and imaginative designs, then add moving elements to bring their creations to life.

As they position gears, turn components and experiment with different arrangements, young builders begin exploring movement, rotation, structure and cause and effect. There’s no single way to build — pieces can be rearranged, tested and rebuilt again and again, encouraging curiosity and creative experimentation.

This hands-on approach supports spatial reasoning, problem-solving, fine motor coordination and early engineering thinking, while the bright gears and moving parts add an engaging mechanical dimension to open-ended magnetic play.

Key Features

• 90-piece magnetic gear construction set
• Combines magnetic building pieces with gears and rotating components
• Create colourful 2D layouts and 3D structures with moving parts
• Introduces movement, rotation and simple mechanical concepts
• Encourages creativity, spatial reasoning and problem-solving
• Supports fine motor coordination and hands-on experimentation
• Open-ended design encourages repeated build → turn → test → redesign play
• Manufacturer age marking: 3+

Build Your Magnetic World

Explore more magnetic engineering sets and discover new ways to build, move, experiment and create. Different construction systems introduce new challenges and keep hands-on STEM play growing.