85 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
8 solid bases including 3 large bases to ensure maximum stability
Standard Toy Size Marbles (5/8 inch or smaller) work with this set (15 Glass Marbles Included)
Compatible with Marbulous Marble Run Toys including our Marble Genius Marble Run Starter Set (60 pc.)