This is my version of the Master FTO originally designed by Timur. For a detailed writeup on the history of this puzzle and a full review visit the topic at twistypuzzles.com: http://twistypuzzles.com/forum/viewtopic.php?f=15&t=21983
This puzzle is based on my Dino Skewb, but has an extra shell required to attach the corner pieces. It moves quite well and is entirely stable.If you order this model, you will get a DIY kit of the plastic parts needed to make this puzzle. You will need to supply your own screws (M3), stickers and springs for assembly.