2 Lego Duplo Trains - Number Train 10558 & My First Train Set 10507 - Have fun and Learn Numbers and Colors\rbrThisof Lego Wednesday is all about Lego Trains. Lada will build and review two amazing Lego Duplo Trains. With Number Train you can learn all about numbers and colors. My First Train Set is motorised and comes with Duplo rail system.