This amazing 197 piece marble run is just perfect for techno-mad boys and girls.
This hi-tech perpetual motion run will provide hours of fun with 10 metres of bends and drops. Construct the lift tower, fit the screws, assemble the track and fix the rods, then add the steel balls, switch on and away it goes...and goes...and goes. With a Loop-the-Loop & a See-Saw Cascade, this amazing kit provides a truly satisfying challenge.
Looks impossible but easy to balance almost anywhere - magic!£6.95