Photos show sample builds; contents vary by set.
Marble Run Play Set
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✨ Soft, neutral colors for a modern playroom
✨ Build, roll, and rebuild for open-ended play
✨ Hands-on exploration of balance, motion, and cause and effect
✨ Choose an 80, 150, or 250 piece set
✨ Designed for ages 3+
Build a little adventure, one piece at a time! The Square House Marble Run Play Set invites little creators to build their own marble towers, send marbles rolling, and discover something new with every rebuild.
Soft, neutral tones bring a calm look to the playroom, while open-ended building gives kids room to experiment with different layouts and follow their ideas. Choose from three set sizes for hands-on play, from a first marble run to more elaborate creations.
Age & safety
Ages 3 and up. Adult supervision recommended. WARNING: CHOKING HAZARD — Small parts. Not for children under 3 years.
What's included in each set?
Every set includes building components and marbles. Marbles are counted in the total piece count.
80 Piece set: 65 building pieces + 15 marbles
41 support tubes, 3 bases, 1 entry cup, 3 funnel tracks, 1 tall arch support, 2 zigzag tracks, 9 straight tracks, 1 short arch support, 2 spinner wheels, 2 curved tracks, and 15 marbles.
150 Piece set: 120 building pieces + 30 marbles
81 support tubes, 4 bases, 2 entry cups, 4 funnel tracks, 2 tall arch supports, 3 zigzag tracks, 17 straight tracks, 1 short arch support, 3 spinner wheels, 3 curved tracks, and 30 marbles.
250 Piece set: 200 building pieces + 50 marbles
135 support tubes, 4 bases, 2 entry cups, 7 funnel tracks, 4 tall arch supports, 6 zigzag tracks, 28 straight tracks, 2 short arch supports, 6 spinner wheels, 6 curved tracks, and 50 marbles.
The gallery includes a separate contents card for each size. Shared lifestyle photos show build inspiration; the quantities above describe the set you select.
Which size should I choose?
80 pieces: a smaller starting set with 65 building pieces and 15 marbles.
150 pieces: more building options with 120 building pieces and 30 marbles.
250 pieces: our largest set, with 200 building pieces and 50 marbles for more elaborate layouts.
All three sizes include the same types of building components in different quantities.
What age is the marble run for?
Ages 3 and up. Younger builders may need help connecting pieces and balancing their towers. Adult supervision is recommended.
WARNING: CHOKING HAZARD — Small parts and marbles. Not for children under 3 years. Keep loose pieces and marbles away from younger siblings.
How do I build and care for it?
Build on a flat, stable surface, connect the supports and tracks, then release a marble to test your route. Rebuild and experiment with different paths.
Wipe pieces with a soft, damp cloth and allow them to dry before storing. Keep marbles together in a secure container and check for damaged pieces before play.
Choose options
Photos show sample builds; contents vary by set.