Using this exhaust spring puller tool is easy. First, hold the hand - holder firmly. Then, use the hook to grab the exhaust spring. Pull gently but steadily until the spring is removed. When using, make sure your hands are dry to prevent slipping. Also, don't use excessive force as it may damage the tool or the spring. After each use, clean the tool with a dry cloth and store it in a dry place to keep it in good condition.