No Marbles. Lots Of Water.

WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.

Give Rube Goldberg a faucet, and this set would really have turned him on. The 300-piece hydrodynamic building set (lots of Rube tubes) lets you construct 1:87-scale models of refineries, distillation facilities, water treatment plants, or anything similar. Includes gantry parts, tubing, assorted vessels, tanks and valves, a tilt scale, ball flow meter, water wheel, mini-signage, and a 12V water pump. Comes in a 17" x 11" x 3-1/4" carrying case that doubles as a leak-proof mounting platform. It has a well-written 15pp instruction book. Can you say Science Fair?