Capitalizing on the fastest-growing trend in construction, Mega Bloks brings magnetic play to preschoolers with the launch of Magtastik.TM  MagtastikTM is the only preschool activity and learning system that uses magnetic wonder to build fun shapes. Children can create and discover magnetic fun with open-ended creativity to ignite their imagination! It could inspire the next Picasso artist, the next Frank Getty architect, or the next Einstein scientist. The set comes in Primary (#429) and includes 10 balls, 18 rods and 2 special pieces.