This Destroyer Droid was built using parts from the Lego set "Clone Troopers vs. Droidekas" # 75000. You will need two or three of those battle packs to build this, but it all depends on the kind of extra lego parts you have in your own collection. when you buy this manual for only $1.00, you will get manuals for two more alternate models of this Droideka sent to your email for free. If you have any questions you can contact me at [email protected] Thank you P.S. please note: there is no shipping charge! after you pay the $1.00 I will e-mail you the manuals, make sure you give me your e-mail address, so I will know where to send them.