With the Plug It Marble Run children can attach the track elements in different ways, they can also be turned upside down and pinned in place. With the oval slots the rails can be finely adjusted. There are several ways to attach the plug and to influence the slope and gradient. Now you can experiment how the ball runs best, fastest and quietest. With the 4 different rail forms children can make endless combinations and explore which rail makes the ball roll faster or slower.

Fits the Plug It Wall Panels (#36950).

The Plug It Ball Run Includes: 

• 6 rail elements in 4 different rail shapes: two different waves, stairs and arc 
• 12 large rail plugs 
• 6 wooden balls