This construction set includes 83 hollow plastic pieces (19 different shapes in 5 colors) and 16 activity cards. Colors include red, orange, green, blue and gray. This STEAM resource assists in the development of fine motor, hand-eye coordination and spatial reasoning skills. Toddlers will construct animals, motorbikes, buildings, robots and more with the included activities. Encourage creative and open-ended play as children create unique designs. The cards display the exact pieces needed to construct each design. The pieces easily connect with dovetail joints, feature rounded corners and are lightweight. Sizes: 4"L x 1.75"W - 1.75"L x 1.75"W. For ages 18m+.