TAK1064 Features: * Establish a foundation in physics by building models * Assemble and use a spring scale machines change the direction and magnitude of forces, making work easier to do * Ages 8 and up Includes: * Includes six simple machines: levers, pulleys, inclined planes, screws, wedges, and wheels and axles * 12-page color instruction book included Assembly Instructions: * Assembly required Dimensions: * Guide book dimensions: 3.25"" W x 9.5"" D