This construction set includes 83 hollow, plastic pieces (19 different shapes, 5 colors) and 16 Activity Cards. Colors include: red, orange, green, blue and gray. This set assists in the development of fine motor, hand-eye coordination and spatial reasoning skills. Foster children's imagination and creative thinking skills with this STEAM resource. Toddlers will construct animals, motorbikes, building, robots and more with the included activities. Encourage open-ended play as children create their own unique designs. The cards display the exact sticks needed to construct the letter or shape. Made of chunky, thick plastic, these pieces are easy for toddlers to manipulate and connect. Size of smallest piece: 1.7" dia. For ages 18m+. Recommended age 18+ months