Hi, I'm mathmachene with a even better NXT project. I got some pneumatic cylinders for Christmas so I built this. I don't know what to call it so I called it the claw. It has a boom that can move up and down. The boom is about a foot long. At the end of the boom it has a claw. I didn't build it so it could hold a lot, so it can only hold about 3 lbs (not including the boom). The big pump that is connected to the hand has to be pumped by hand, the little pump is connected to a motor. On the building instructions you have to build the simple robot that is the base of the shooter bot. The motor used on the instructions is the motor that connects to the shooter on the shooterbot. The yellow pieces are the cylinders. The yellow thing that is connected to the motor is the mini pump. I uploaded some pictures of it. The pics show what it can do.