Building blocks—with a twist! With this marble run, children can create horizontal structures to make marbles move. The key (and satisfaction) involves how you position the holes in the blocks. You must use your noggin!
Our Basic Set of 49 pieces includes blocks, rails, and a twist.
Add special effects with the 11-piece Switch Set that includes a "speedmaker," and allows you to let marbles go one at a time or all at once.
The Xcellerator Set, a step up from the basic set, has 136 pieces, including a twist and 10 accelerators. All sets include 50 marbles and terrific instruction books
The ultimate challenge—and fun—is the 198-piece Cyclone Set that has 10 accelerators, 2 twists, and 12 curved rails. All sets include 50 marbles and terrific instruction books.
For ages 4 and up.
• A marble run with a challenging "twist" • Kids get to engineer a way for marbles to move through a maze of horizontals • The ultimate fun 198-piece set includes 10 accelerators, 2 twists, and 12 curved rails • Each set includes 50 marbles and instruction book.