4M KidzLabs/Electric Marble Run, Motorised Science Kit for Kids 5 12 years, Black

Build this motorised marble run and learn some basic laws of motion Great educational science project kit for kids 5+ Encourage your child to be interested in the laws of motion Learn how to build and use a marble run Contains - Base, spiral track, back plate, turning wheel, front plate, motor, track connector, motor cover, track lock, battery cover, large gear, drive gear, small gear, metal balls x 8, terminal caps x 2, screws x 5. Also required but not included in the kit: 1 x 1.5V AAA battery, a small crosshead screwdriver, Manufacturer: 4M