<HTML>List;      Installed my first set of these triangle dollies for a Yamaha Grand Piano---6'1" No instructions....Therefore bolted two "five sided plates together with the three extensions....one extenstion bolted in the center of the plate and the other two bolted off center to each side of the plate. I never could get the thing where it looked centered under the piano. When the extensions were the same distance from the center 5 sided plate the thing was off center of the piano too much toward the curved side. I finally adjusted the center plate so it was as close to the center of the keybed and adjusted the extensions to different lengths to fit the legs and then bolted it all tight. My questions---I assumed the extension bolted in the center of the plate went to the back leg and the other two to each of the front legs. I wondered if the five sided plate that the extensions bolted too must twist either clockwise or counter clockwise to center the thing up. Did I give enought info for you to determine if I installed this thing correctly. It rolls....it fits each leg..and the center plate is resting just behind the center of the key bed....and the longest extension is to the back leg...I guess my main concern is that it's balanced correctly. I'm not sure it can be installed "umbalanced" I going to call Schaff Monday but I am concerned I used good judgement without directions. Thank you for your help and "happy Thanksgiving" Tommy Black Decatur, Ala.</HTML>