This is a roll cage that can be mounted on your ATR frame.  It is best if you order this the same time you buy a platform/base so we can match it and mount it to your base.  The assembly is made with 3/8" aircraft grade aluminum that is treaded at the ends to mount to the base.  The top cross members are 1/8"x1" Alumimum bars with a piece of 1/8" thick acrylic mounted on top of it. 

You can add halogen lights to the top of the roll cage too if you like.  The Halogen light set comes with wire and a fuse.  If you get the roll cage lights option you will also want a 12V battery.  When you order the roll cage with the lights option we will mount the lights on the roll cage.