Duplo Blocks TrainSuitable for children between the ages of 18 months and 5 years, these Duplo blocks are designed to be safe and enjoyable for toddlers. The letter bricks measure 4 cm in height and 3. 5 cm in length, but we advise supervising children under 3 years when playing with this toy. In addition to being fun, the Duplo Blocks Train are also educational. They help kids learn the alphabet, practice motor skills, and recognize shapes and colors. This set makes