Using these plug tops is easy. First, make sure your appliance is unplugged and turned off. Then, follow the included fitting instructions to connect the 2 - wire cable to the plug top. When using, always ensure the plug is fully inserted into the socket to avoid any loose connections. Keep the plug tops away from water and moisture to prevent short - circuits. If you notice any damage, like a frayed wire or a broken pin, stop using the plug top immediately. For maintenance, simply wipe the plug tops with a dry cloth from time to time to keep them clean.