Uncover some truly fascinating facts and encourage an early interest in science with three fully illustrated, interactive, non-fiction books�Dinosaurs, Sharks, and Space�and the brand-new, translucent, Hot Dots Talking Pen! Each book includes an activity page for added hands-on learning. Get 11 downloadable bonus enrichment activities that supplement your child�s learning experience (available online). Simply press the pen to an answer dot on any activity for an immediate audio and visual response. Perfect for independent, self-paced learning, this educational science set helps prepare children for success in school. # Pieces In Set: 5 Learning Skill: Languages, Reading + Writing Power Source: Battery (not Included) Measurements: 8.4 Depth/Inches, 9.2 Length/Inches, 2.2 Height/Inches Base Material: 100% Plastic Battery Size: Aaa Care: Wipe Clean Country of Origin: Imported