Science4You Invention Factory Dolce & Gabbana Dolce EDP Many of the items in SM 19075855342 FD Many of the items in this kit have more than one use so kids can keep their imaginations and their tracks growing with a series of nearly endless configurations Battery life: Up to 6 hours Kids are always curious about how things work and this awesome and affordable Science4You Inventions Factory Science Kit will challenge them to complete fun experiments focusing on the inventing and building their own scientific contraptions Activities in this set are set out with step by step instructions in the 36 page colour instructions books provided