- 50 pcs premium marble run booster set with new shape parts, add more fun for your child to watch marbles run along tracks
- Package includes 30 pieces variety color action parts which are made of high quality solid color plastic and 20 regular size glass marbles
- All tracks and parts are compatible with regular size marble run set
- This stem marble run set comes with an assembly instruction to help kids’ hand-eye coordination. Perfect toy set to develop kids’ creativity, logical thinking, hand-eye coordination.
- Child safety: meet us safety standard, safety test approved, 100% non-toxic
- Item number: 12161
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