8 years & up. Young mechanical engineers can build their very own pulley-powered arcade claw machine! Construct the frame of your machine then wrap the string around a pulley system and attach the claw. Fill your machine with DIY prizes or items you have around your house then put your claw into action. Learn about the physics of pulleys through real-life applications of claws. Kit includes a 32-page book that explains the physics of pulleys, force, and motion along with challenging activities that promote STEM and STEAM experiences. Included: Chipboard Parts, Acetate Windows, Cotton String in 2 Colors, 2 Plastic Dowels, 2 Wheels, 2 Tall Pulleys, 6 Short Pulleys, Carriage, Claw, and Plastic Snaps. Prizes shown are not included.