Using this glass plate drive button is easy. First, make sure your microwave is unplugged for safety. Then, locate the old drive button on your microwave's turntable motor. Carefully remove the old one and replace it with this new glass plate drive button. Make sure it fits snugly on the 7mm D - shape shaft of the turntable motor. When using your microwave, avoid using excessive force on the plate as it might damage the drive button. Also, keep the button clean. You can wipe it with a soft, damp cloth if it gets dirty. If you notice any signs of wear or damage, like cracks or loose fitting, replace the button right away to ensure your microwave works properly.