IMR Add on Pack - Supports - All Types Theme:Black 1 fun idea booklet with

1 fun idea booklet with basics

An official collaboration between Jelle's Marble Runs and Impact Marble Racing

and designed to encourage problem-solving

Adult SIZE CHART (in inches)

Use them to customize race outcomes

IMR Add on Pack - Supports - All Types Theme:Black 1 fun idea booklet with30 Piece Support Post Pack for Taller Marble Racing Builds Raise and shape your marble racing track with this 30 piece support post pack in three heights. With 10 each of 1 high, 3 high, and 7 high posts, you can fine tune elevation across a whole layout, from gentle slopes to towering drops. Mixing heights lets you control marble speed, build multi level courses, and create the inclines that make races fast and dramatic. The most versatile support