Can You Imagine Time Machine Tabletop Clock by digitallahore. HomeTechnology NewsCan You Imagine Time Machine Tabletop Clock by digitallahore. [A-] [A+] Product Features High quality wooden spiral track 3 drop/connecting holes Helix: 14 3/4 long, 9 1/2 inch diameter Accelerator: 1 1/2 x 1 5/8 inches Ages 4+