Using the GRM250 Glass Robot is easy. First, position the robot near the glass panel on the rack. The three large suction cups will firmly hold the glass when activated. To move it through narrow areas, simply rotate the glass sideways. You can tilt the glass forward or backward for the best placement. The glass attachment can be rotated 360 degrees to get the right angle. Remember to check the suction cups regularly for any signs of wear. Clean the suction cups after each use to maintain their grip. Also, make sure the wheelbase is properly adjusted before lifting heavy loads for better stability. This robot can also be used on windows, tiles, and countertops, but always ensure the surface is clean before using the suction cups.