It has 19mm cubies

Hollow Version of the 1x2x3 :) enjoy

Its the void version of the Floppy cube!See the Twistypuzzles topic: http://twistypuzzles.com/forum/viewtopic.php?f=15&t=18304Enjoy!

I think it's the best mechanism for the 1x2x5.

this is for material tests

You can buy the Keychain version too: http://www.shapeways.com/model/108596/rail_with_a_ball_inside___keychain.html

This is the keychain version :D.

Crazy version of the floppy cube!!!

The cheapest 1x2x5 you ever seen! It has 19mm cubies

Do not need springs and screws, just assemble and twist!30mm x 30mm x 20mm

crazy version of the 1x2x3, pretty easy!

this is the Square-1 in a 3x2x1 body!