IMR Add on Pack - Inserts Theme:Red 5 ways to play with

5 ways to play with score cards and game ideas included

Clear Dark Gray Colored Dominoes for Stacking

and the close-contact moments where marbles collide and battle for position

The rapid tracks and bridges is the ultimate way to literally take your stacking and toppling to the next level

IMR Add on Pack - Inserts Theme:Red 5 ways to play withInsert Variety Pack: One of Each Type Plus Half Track One of each IMR insert type plus a half track section so you can experiment with every customization option in the IMR system. Inserts are specialty pieces that drop into existing track sections to change marble behavior adding pathway dividers, speed bumps, or design variations to tracks you've already built. This variety pack is the easiest way to try every insert type before deciding which ones