Introduce group STEM imaginative and creative building with this 192 piece set with 12 work cards. This set allows several young engineers to build amazing 3-dimensional structures at one time, while promoting fine motor skills and creativity. The large pieces in a variety of shapes attach so the creations can move. Wheels are included to make structures turn into unique vehicles. The 12 work cards are subdivided in 3 grades of difficulty. The Mobilo Construction Kit is expandable and compatible with all Mobilo builders. Set is washable, durable, and reliable for everyday use in classrooms. A portable cotton drawstring bag is included for easy storage. For children ages 3 yrs. .