This adorable "Train" your brain was inspired by my little one's love of transportation. Together with his help, we designed each train car, engine and caboose with simple shapes. See if you can find an identify all the until lines and shapes we used. He these choose the colors and shapes for each train car. Our little four year old is in love with his cars and loves to count, build on and identify his shapes. Have a little one who loves trains, cars or automobiles, this set is for you! Comes with 12 basic shapes, an engine and caboose.