3Doodler START Essentials Pen Set Kids bring ideas to life in 3D with this award-winning Pen Set! Plastic extrudes and hardens rapidly allowing kids to literally create anything. Child-Safe 3D Pen: Pen nozzle and plastic can safely be touched with no risk of burning, completely safe for kids ages 6-13. Perfect for STEM Learning: Inspires creativity, design, planning, building and spatial understanding. Wireless use for 45mins to an hour. Biodegradable 3Doodler Start Plastic, made entirely from BPA-Free, Non-Toxic materials.