Hydraulic Gearbot



Designed to get both boys and girls into learning about levers and simple machines,

This Hydraulically operated and geared catapult is relatively easy to
make, will amaze your friends,
and launch all sorts fo things all in the name of scientific enquiry. 
There is information about the different gears at the end!

Now Here!- and it was awarded “2016 Toy of the Year“- for building kits by Creative Child Magazine!