Marble Genius Marble Run Extreme Set – 300 Complete Pieces + Free Instruction App (181 Translucent Marbulous Pieces…

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181 see-through Marble Run pieces allow you to see all the action
Solid plastic pieces that stick together and are easy for kids to play with
42 action pieces and 9 solid bases to ensure maximum enjoyment
Standard Toy Size Marbles (5/8 inch or smaller) work with this set (20 Glass Marbles Included)
Compatible with Marbulous Marble Run Toys including our Marble Genius Marble Run Starter Set (130 pc.), Super Set (150 pc.), Booster Set (20 pc.), & 9 Accessory Sets