Take control of speed, strategy, and pure excitement with the ROKR Gear Ball Challenge EGC01—a fully interactive 3D wooden marble run designed for builders who crave both engineering and adrenaline. This advanced puzzle puts you in charge of every twist, turn, and victory as you guide marbles through high-speed tracks using switches, dials, and adjustable mechanisms.

With an impressive 653 pieces, the Gear Ball Challenge transforms into a dynamic mechanical game where you choose the fastest path to the finish line. Toggle track switches, skip levels, adjust speed, and launch marbles through thrilling features like the transparent sky ring track, jump ramp, and high-speed ejection ramp. Activate the automated lift, race toward the goal, and celebrate as the copper bell rings when you claim the final flag!

• Assembly Size: 295 × 195 × 205 mm
• Package Size: Top 315 × 237 × 65 mm / Bottom 308 × 230 × 65 mm
• Pieces: 653 pcs
• Material: High-quality plywood
• Features:
• Fully interactive, multi-path marble run
• Switches, dials, and knobs for manual control
• Automated lift system
• Transparent sky ring track
• Jump ramp & ejection ramp
• Separator wheel randomizer
• Victory bell with finishing flag

A perfect challenge for puzzle lovers, engineering fans, and families looking for a fun, fast-paced, and replayable marble run experience.

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