NameTrains Letter Cars are crafted from locally sourced and sustainably harvested hard maple. Magnets allow you to attach cars to form names and words. Each NameTrains Letter Car is available in one of 6 colors: red, orange, yellow, green, blue, or purple. The Letter Cars measure about 2.4" tall and about 2.7" long. Compatible with our and other wooden train sets. Non-toxic finish.