IMR Add on Kit community These clips connect cardboard sheets

These clips connect cardboard sheets together so kids can build life-size structures out of boxes that would otherwise end up in recycling

1 fun idea booklet with basics

book stands

from gentle slopes to towering drops

and planks unlocks possibilities that aren't possible with any single component on its own

IMR Add on Kit community These clips connect cardboard sheets97 Piece Ultimate Add On Kit for Marble Racing Tracks Take your marble racing to the next level with the IMR Add on Kit, the ultimate expansion kit for the IMR Speedway, IMR Grand Prix, or IMR Circuit. This assorted mix of modular track pieces lets you build longer, wider, and more dynamic courses for your head to head marble competitions. Includes a variety of straights, turns, and specialty parts designed to seamlessly snap into your existing IMR