This is the Thorny Cube. This model just contains the small pieces I call the thorns. You will also need to buy the pieces in this model to assemble the finished Thorny Cube: Thorny Cube 1of2.
This puzzle requires no hardware to assemble and you may purchase stickers for this puzzle here.
Read more about this puzzle on Twisty Puzzles in this thread.
I've included 3 extras of each of the 3 types of thorns as they tend to pop and are relatively small. So if you lose one you will have spares.