NZXT Phantom 240 standoffs

[Rally0078]

I lost the standoffs NZXT gave me with the case. I had a micro ATX board, so I didn't need more than 4 standoffs. Now i have changed to an ATX board and i need more standoffs. There are different standoff heights. Which one am i supposed to buy?

 

[SkyNetRising]

Just get all 9 of them (all of the same size).