# Blockly > Demos > Toolbox

This is a demo of a complex category structure for the toolbox.

→ More info on the Toolbox...

10 i 1 10 1 1 1 100 1 100 5 <sep></sep> <mutation> randomize x 1 list 1 y 1 list <next> temp GET FROM_START y list <next> y list GET FROM_START x list <next> x list temp </next> </next> </next> 'Twas brillig, and the slithy toves <next> Did gyre and gimble in the wabe: <next> All mimsy were the borogroves, <next> And the mome raths outgrabe. </next> </next> </next> "Beware the Jabberwock, my son! <next> The jaws that bite, the claws that catch! <next> Beware the Jubjub bird, and shun <next> The frumious Bandersnatch!" </next> </next> </next>