iM.Master Mechanical Master 2-in-1 Pull-Back Formula Racing Car & ATV Building Kit (429 Pieces)

Build, race, and conquer any terrain with the iM.Master Mechanical Master 2-in-1 Pull-Back Formula Racing Car & ATV Building Kit (429 Pieces)! Designed for aspiring engineers and motorsport fans ages 6 and up, this versatile Technic-style construction kit delivers double the engineering and play value in a single box—allowing builders to construct an aerodynamic open-wheel Formula racing car or rebuild the pieces into a rugged, all-terrain quad ATV.

Powered by a high-torque mechanical pull-back motor, both vehicles launch forward across floors and tracks with zero batteries required, introducing young builders to kinetic energy, gear transmission, and structural mechanics through hands-on play.

Product Highlights

• 2-in-1 Rebuildable Vehicle Design: Follow the clear, step-by-step illustrated manual to build either a sleek, low-profile Formula open-wheel race car or a heavy-duty four-wheel ATV quad bike from the same 429-piece kit.
• High-Speed Pull-Back Motor Action: Integrated spring-loaded pull-back drive module lets kids pull the completed racer backward, release, and watch it zoom across smooth indoor surfaces without batteries.
• 429 Precision Technic-Style Pieces: Features durable beams, pins, axles, contoured aerodynamic bodywork panels, front and rear spoilers, and wide rubber-treaded tires that lock together securely for rugged play.
• Hands-On STEM Engineering Experience: Encourages spatial reasoning, logical problem-solving, fine motor dexterity, and an intuitive understanding of mechanical motion and stored spring energy.
• Cross-Brand Brick Compatibility: High-precision ABS plastic elements snap together firmly and are fully compatible with major standard Technic-style and interlocking construction brick systems.