Trying to put together parts

Ok, tried to put together some of the Lynxmotion parts that I ordered today. I forgot how difficult it is to put together tiny parts when you are as old as I am. I have large hands and that works against you as well. My grandson and I used the Pololu servo controller with the canned program for controlling via a slider with two of the servos. That worked very well. This was when the servos were not connected in any of the metal parts. We put together part of a robotic arm and again tested the movement of the servos. We discovered that I had ordered the wrong parts. I actually needed the long "C" brackets instead of the short ones. Part of this misunderstanding came about because I did not realize how small the parts were from Lynxmotion. Well, nothing that I can do about that right now. I will order more parts so that I can complete the robotic arm.